Home / 651,707.70-977,561.55-385,331.10

Finding the Fourth Proportional to 651,707.70, 977,561.55 and 385,331.10

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Solution

The fourth proportional to 651,707.70, 977,561.55 and 385,331.10 is: 577,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,707.70 : 977,561.55 = 385,331.10 : x
  2. Step 2: Convert to fraction form
    651,707.70/977,561.55 = 385,331.10/x
  3. Step 3: Cross multiply
    651,707.70x = 977,561.55 × 385,331.10
  4. Step 4: Simplify right side
    651,707.70x = 376,684,867,379.21
  5. Step 5: Solve for x
    x = 376,684,867,379.21/651,707.70
  6. Step 6: Final answer
    x = 577,996.65

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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.