Home / 657,923,651.70-986,885,477.55-511,564,800.30

Finding the Fourth Proportional to 657,923,651.70, 986,885,477.55 and 511,564,800.30

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Solution

The fourth proportional to 657,923,651.70, 986,885,477.55 and 511,564,800.30 is: 767,347,200.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,923,651.70 : 986,885,477.55 = 511,564,800.30 : x
  2. Step 2: Convert to fraction form
    657,923,651.70/986,885,477.55 = 511,564,800.30/x
  3. Step 3: Cross multiply
    657,923,651.70x = 986,885,477.55 × 511,564,800.30
  4. Step 4: Simplify right side
    657,923,651.70x = 504,855,872,241,835,840
  5. Step 5: Solve for x
    x = 504,855,872,241,835,840/657,923,651.70
  6. Step 6: Final answer
    x = 767,347,200.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.