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Finding the Fourth Proportional to 438,882.10, 658,323.15 and 404,667.70

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Solution

The fourth proportional to 438,882.10, 658,323.15 and 404,667.70 is: 607,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,882.10 : 658,323.15 = 404,667.70 : x
  2. Step 2: Convert to fraction form
    438,882.10/658,323.15 = 404,667.70/x
  3. Step 3: Cross multiply
    438,882.10x = 658,323.15 × 404,667.70
  4. Step 4: Simplify right side
    438,882.10x = 266,402,114,967.26
  5. Step 5: Solve for x
    x = 266,402,114,967.26/438,882.10
  6. Step 6: Final answer
    x = 607,001.55

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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.