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Finding the Fourth Proportional to 491,146.60, 736,719.90 and 175,613.80

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Solution

The fourth proportional to 491,146.60, 736,719.90 and 175,613.80 is: 263,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,146.60 : 736,719.90 = 175,613.80 : x
  2. Step 2: Convert to fraction form
    491,146.60/736,719.90 = 175,613.80/x
  3. Step 3: Cross multiply
    491,146.60x = 736,719.90 × 175,613.80
  4. Step 4: Simplify right side
    491,146.60x = 129,378,181,174.62
  5. Step 5: Solve for x
    x = 129,378,181,174.62/491,146.60
  6. Step 6: Final answer
    x = 263,420.70

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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.