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Finding the Fourth Proportional to 453,262.96, 679,587.72 and 253,721.08

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Solution

The fourth proportional to 453,262.96, 679,587.72 and 253,721.08 is: 380,409.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,262.96 : 679,587.72 = 253,721.08 : x
  2. Step 2: Convert to fraction form
    453,262.96/679,587.72 = 253,721.08/x
  3. Step 3: Cross multiply
    453,262.96x = 679,587.72 × 253,721.08
  4. Step 4: Simplify right side
    453,262.96x = 172,425,730,273.14
  5. Step 5: Solve for x
    x = 172,425,730,273.14/453,262.96
  6. Step 6: Final answer
    x = 380,409.93

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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.