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Finding the Fourth Proportional to 488,555.40, 732,833.10 and 156,131.40

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Solution

The fourth proportional to 488,555.40, 732,833.10 and 156,131.40 is: 234,197.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,555.40 : 732,833.10 = 156,131.40 : x
  2. Step 2: Convert to fraction form
    488,555.40/732,833.10 = 156,131.40/x
  3. Step 3: Cross multiply
    488,555.40x = 732,833.10 × 156,131.40
  4. Step 4: Simplify right side
    488,555.40x = 114,418,257,869.34
  5. Step 5: Solve for x
    x = 114,418,257,869.34/488,555.40
  6. Step 6: Final answer
    x = 234,197.10

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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.