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Finding the Fourth Proportional to 706,078.76, 974,857.91 and 542,443.83

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Solution

The fourth proportional to 706,078.76, 974,857.91 and 542,443.83 is: 748,932.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,078.76 : 974,857.91 = 542,443.83 : x
  2. Step 2: Convert to fraction form
    706,078.76/974,857.91 = 542,443.83/x
  3. Step 3: Cross multiply
    706,078.76x = 974,857.91 × 542,443.83
  4. Step 4: Simplify right side
    706,078.76x = 528,805,658,406.20
  5. Step 5: Solve for x
    x = 528,805,658,406.20/706,078.76
  6. Step 6: Final answer
    x = 748,932.96

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Double scale
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1.5x scale

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.