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Finding the Fourth Proportional to 488,567.70, 732,851.55 and 329,135.40

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Solution

The fourth proportional to 488,567.70, 732,851.55 and 329,135.40 is: 493,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,567.70 : 732,851.55 = 329,135.40 : x
  2. Step 2: Convert to fraction form
    488,567.70/732,851.55 = 329,135.40/x
  3. Step 3: Cross multiply
    488,567.70x = 732,851.55 × 329,135.40
  4. Step 4: Simplify right side
    488,567.70x = 241,207,388,049.87
  5. Step 5: Solve for x
    x = 241,207,388,049.87/488,567.70
  6. Step 6: Final answer
    x = 493,703.10

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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.