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Finding the Fourth Proportional to 493,613.80, 740,420.70 and 450,068.20

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Solution

The fourth proportional to 493,613.80, 740,420.70 and 450,068.20 is: 675,102.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,613.80 : 740,420.70 = 450,068.20 : x
  2. Step 2: Convert to fraction form
    493,613.80/740,420.70 = 450,068.20/x
  3. Step 3: Cross multiply
    493,613.80x = 740,420.70 × 450,068.20
  4. Step 4: Simplify right side
    493,613.80x = 333,239,811,691.74
  5. Step 5: Solve for x
    x = 333,239,811,691.74/493,613.80
  6. Step 6: Final answer
    x = 675,102.30

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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.