Home / 579,507.40-869,261.10-547,030.45

Finding the Fourth Proportional to 579,507.40, 869,261.10 and 547,030.45

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Solution

The fourth proportional to 579,507.40, 869,261.10 and 547,030.45 is: 820,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,507.40 : 869,261.10 = 547,030.45 : x
  2. Step 2: Convert to fraction form
    579,507.40/869,261.10 = 547,030.45/x
  3. Step 3: Cross multiply
    579,507.40x = 869,261.10 × 547,030.45
  4. Step 4: Simplify right side
    579,507.40x = 475,512,290,700.50
  5. Step 5: Solve for x
    x = 475,512,290,700.50/579,507.40
  6. Step 6: Final answer
    x = 820,545.68

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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.