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Finding the Fourth Proportional to 453,468.60, 680,726.70 and 243,516.60

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Solution

The fourth proportional to 453,468.60, 680,726.70 and 243,516.60 is: 365,556.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,468.60 : 680,726.70 = 243,516.60 : x
  2. Step 2: Convert to fraction form
    453,468.60/680,726.70 = 243,516.60/x
  3. Step 3: Cross multiply
    453,468.60x = 680,726.70 × 243,516.60
  4. Step 4: Simplify right side
    453,468.60x = 165,768,251,513.22
  5. Step 5: Solve for x
    x = 165,768,251,513.22/453,468.60
  6. Step 6: Final answer
    x = 365,556.19

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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.