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Finding the Fourth Proportional to 687,937.91, 949,335.93 and 382,006.31

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Solution

The fourth proportional to 687,937.91, 949,335.93 and 382,006.31 is: 527,158.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,937.91 : 949,335.93 = 382,006.31 : x
  2. Step 2: Convert to fraction form
    687,937.91/949,335.93 = 382,006.31/x
  3. Step 3: Cross multiply
    687,937.91x = 949,335.93 × 382,006.31
  4. Step 4: Simplify right side
    687,937.91x = 362,652,310,823.04
  5. Step 5: Solve for x
    x = 362,652,310,823.04/687,937.91
  6. Step 6: Final answer
    x = 527,158.50

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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.