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Finding the Fourth Proportional to 477,856.60, 716,909.03 and 178,339.46

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Solution

The fourth proportional to 477,856.60, 716,909.03 and 178,339.46 is: 267,555.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,856.60 : 716,909.03 = 178,339.46 : x
  2. Step 2: Convert to fraction form
    477,856.60/716,909.03 = 178,339.46/x
  3. Step 3: Cross multiply
    477,856.60x = 716,909.03 × 178,339.46
  4. Step 4: Simplify right side
    477,856.60x = 127,853,165,471.85
  5. Step 5: Solve for x
    x = 127,853,165,471.85/477,856.60
  6. Step 6: Final answer
    x = 267,555.51

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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.