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Finding the Fourth Proportional to 539,356.39, 808,465.87 and 179,431.11

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Solution

The fourth proportional to 539,356.39, 808,465.87 and 179,431.11 is: 268,957.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,356.39 : 808,465.87 = 179,431.11 : x
  2. Step 2: Convert to fraction form
    539,356.39/808,465.87 = 179,431.11/x
  3. Step 3: Cross multiply
    539,356.39x = 808,465.87 × 179,431.11
  4. Step 4: Simplify right side
    539,356.39x = 145,063,929,497.81
  5. Step 5: Solve for x
    x = 145,063,929,497.81/539,356.39
  6. Step 6: Final answer
    x = 268,957.47

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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.