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Finding the Fourth Proportional to 492,726.30, 739,089.45 and 413,010.15

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Solution

The fourth proportional to 492,726.30, 739,089.45 and 413,010.15 is: 619,515.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,726.30 : 739,089.45 = 413,010.15 : x
  2. Step 2: Convert to fraction form
    492,726.30/739,089.45 = 413,010.15/x
  3. Step 3: Cross multiply
    492,726.30x = 739,089.45 × 413,010.15
  4. Step 4: Simplify right side
    492,726.30x = 305,251,444,607.92
  5. Step 5: Solve for x
    x = 305,251,444,607.92/492,726.30
  6. Step 6: Final answer
    x = 619,515.23

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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.