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Finding the Fourth Proportional to 532,406.60, 798,609.90 and 158,429.60

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Solution

The fourth proportional to 532,406.60, 798,609.90 and 158,429.60 is: 237,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,406.60 : 798,609.90 = 158,429.60 : x
  2. Step 2: Convert to fraction form
    532,406.60/798,609.90 = 158,429.60/x
  3. Step 3: Cross multiply
    532,406.60x = 798,609.90 × 158,429.60
  4. Step 4: Simplify right side
    532,406.60x = 126,523,447,013.04
  5. Step 5: Solve for x
    x = 126,523,447,013.04/532,406.60
  6. Step 6: Final answer
    x = 237,644.40

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Double scale
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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.