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Finding the Fourth Proportional to 701,990.82, 1,053,162 and 402,809.22

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Solution

The fourth proportional to 701,990.82, 1,053,162 and 402,809.22 is: 604,314.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,990.82 : 1,053,162 = 402,809.22 : x
  2. Step 2: Convert to fraction form
    701,990.82/1,053,162 = 402,809.22/x
  3. Step 3: Cross multiply
    701,990.82x = 1,053,162 × 402,809.22
  4. Step 4: Simplify right side
    701,990.82x = 424,223,363,753.64
  5. Step 5: Solve for x
    x = 424,223,363,753.64/701,990.82
  6. Step 6: Final answer
    x = 604,314.69

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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.