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Finding the Fourth Proportional to 539,808.60, 809,712.90 and 531,935.40

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Solution

The fourth proportional to 539,808.60, 809,712.90 and 531,935.40 is: 797,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,808.60 : 809,712.90 = 531,935.40 : x
  2. Step 2: Convert to fraction form
    539,808.60/809,712.90 = 531,935.40/x
  3. Step 3: Cross multiply
    539,808.60x = 809,712.90 × 531,935.40
  4. Step 4: Simplify right side
    539,808.60x = 430,714,955,346.66
  5. Step 5: Solve for x
    x = 430,714,955,346.66/539,808.60
  6. Step 6: Final answer
    x = 797,903.10

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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.