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Finding the Fourth Proportional to 478,233.90, 717,350.85 and 478,233.90

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Solution

The fourth proportional to 478,233.90, 717,350.85 and 478,233.90 is: 717,350.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,233.90 : 717,350.85 = 478,233.90 : x
  2. Step 2: Convert to fraction form
    478,233.90/717,350.85 = 478,233.90/x
  3. Step 3: Cross multiply
    478,233.90x = 717,350.85 × 478,233.90
  4. Step 4: Simplify right side
    478,233.90x = 343,061,494,663.82
  5. Step 5: Solve for x
    x = 343,061,494,663.82/478,233.90
  6. Step 6: Final answer
    x = 717,350.85

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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.