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Finding the Fourth Proportional to 539,097.20, 808,645.80 and 456,153.20

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Solution

The fourth proportional to 539,097.20, 808,645.80 and 456,153.20 is: 684,229.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,097.20 : 808,645.80 = 456,153.20 : x
  2. Step 2: Convert to fraction form
    539,097.20/808,645.80 = 456,153.20/x
  3. Step 3: Cross multiply
    539,097.20x = 808,645.80 × 456,153.20
  4. Step 4: Simplify right side
    539,097.20x = 368,866,369,336.56
  5. Step 5: Solve for x
    x = 368,866,369,336.56/539,097.20
  6. Step 6: Final answer
    x = 684,229.80

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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.