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Finding the Fourth Proportional to 398,121.60, 596,591.69 and 292,423.89

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Solution

The fourth proportional to 398,121.60, 596,591.69 and 292,423.89 is: 438,201.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,121.60 : 596,591.69 = 292,423.89 : x
  2. Step 2: Convert to fraction form
    398,121.60/596,591.69 = 292,423.89/x
  3. Step 3: Cross multiply
    398,121.60x = 596,591.69 × 292,423.89
  4. Step 4: Simplify right side
    398,121.60x = 174,457,661,269.36
  5. Step 5: Solve for x
    x = 174,457,661,269.36/398,121.60
  6. Step 6: Final answer
    x = 438,201.95

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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.