Home / 691,631.60-954,432.58-385,717.28

Finding the Fourth Proportional to 691,631.60, 954,432.58 and 385,717.28

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Solution

The fourth proportional to 691,631.60, 954,432.58 and 385,717.28 is: 532,279.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,631.60 : 954,432.58 = 385,717.28 : x
  2. Step 2: Convert to fraction form
    691,631.60/954,432.58 = 385,717.28/x
  3. Step 3: Cross multiply
    691,631.60x = 954,432.58 × 385,717.28
  4. Step 4: Simplify right side
    691,631.60x = 368,141,138,700.98
  5. Step 5: Solve for x
    x = 368,141,138,700.98/691,631.60
  6. Step 6: Final answer
    x = 532,279.23

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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.