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Finding the Fourth Proportional to 576,901.20, 865,351.80 and 514,232.40

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Solution

The fourth proportional to 576,901.20, 865,351.80 and 514,232.40 is: 771,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,901.20 : 865,351.80 = 514,232.40 : x
  2. Step 2: Convert to fraction form
    576,901.20/865,351.80 = 514,232.40/x
  3. Step 3: Cross multiply
    576,901.20x = 865,351.80 × 514,232.40
  4. Step 4: Simplify right side
    576,901.20x = 444,991,932,958.32
  5. Step 5: Solve for x
    x = 444,991,932,958.32/576,901.20
  6. Step 6: Final answer
    x = 771,348.60

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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.