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Finding the Fourth Proportional to 621,674.31, 932,511.47 and 411,263.04

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Solution

The fourth proportional to 621,674.31, 932,511.47 and 411,263.04 is: 616,894.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,674.31 : 932,511.47 = 411,263.04 : x
  2. Step 2: Convert to fraction form
    621,674.31/932,511.47 = 411,263.04/x
  3. Step 3: Cross multiply
    621,674.31x = 932,511.47 × 411,263.04
  4. Step 4: Simplify right side
    621,674.31x = 383,507,499,930.75
  5. Step 5: Solve for x
    x = 383,507,499,930.75/621,674.31
  6. Step 6: Final answer
    x = 616,894.56

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Similar ratio
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1.5x scale

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.