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Finding the Fourth Proportional to 717,398.86, 989,937.17 and 441,712.93

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Solution

The fourth proportional to 717,398.86, 989,937.17 and 441,712.93 is: 609,518.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,398.86 : 989,937.17 = 441,712.93 : x
  2. Step 2: Convert to fraction form
    717,398.86/989,937.17 = 441,712.93/x
  3. Step 3: Cross multiply
    717,398.86x = 989,937.17 × 441,712.93
  4. Step 4: Simplify right side
    717,398.86x = 437,268,047,876.61
  5. Step 5: Solve for x
    x = 437,268,047,876.61/717,398.86
  6. Step 6: Final answer
    x = 609,518.74

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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.