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Finding the Fourth Proportional to 586,062.72, 808,761.60 and 331,413.12

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Solution

The fourth proportional to 586,062.72, 808,761.60 and 331,413.12 is: 457,347.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,062.72 : 808,761.60 = 331,413.12 : x
  2. Step 2: Convert to fraction form
    586,062.72/808,761.60 = 331,413.12/x
  3. Step 3: Cross multiply
    586,062.72x = 808,761.60 × 331,413.12
  4. Step 4: Simplify right side
    586,062.72x = 268,034,205,192.19
  5. Step 5: Solve for x
    x = 268,034,205,192.19/586,062.72
  6. Step 6: Final answer
    x = 457,347.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.