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Finding the Fourth Proportional to 477,254.92, 715,865.88 and 122,272.40

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Solution

The fourth proportional to 477,254.92, 715,865.88 and 122,272.40 is: 183,404.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,254.92 : 715,865.88 = 122,272.40 : x
  2. Step 2: Convert to fraction form
    477,254.92/715,865.88 = 122,272.40/x
  3. Step 3: Cross multiply
    477,254.92x = 715,865.88 × 122,272.40
  4. Step 4: Simplify right side
    477,254.92x = 87,530,639,225.71
  5. Step 5: Solve for x
    x = 87,530,639,225.71/477,254.92
  6. Step 6: Final answer
    x = 183,404.37

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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.