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Finding the Fourth Proportional to 576,903.20, 865,354.80 and 514,234.40

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Solution

The fourth proportional to 576,903.20, 865,354.80 and 514,234.40 is: 771,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,903.20 : 865,354.80 = 514,234.40 : x
  2. Step 2: Convert to fraction form
    576,903.20/865,354.80 = 514,234.40/x
  3. Step 3: Cross multiply
    576,903.20x = 865,354.80 × 514,234.40
  4. Step 4: Simplify right side
    576,903.20x = 444,995,206,365.12
  5. Step 5: Solve for x
    x = 444,995,206,365.12/576,903.20
  6. Step 6: Final answer
    x = 771,351.60

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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.