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Finding the Fourth Proportional to 731,455, 1,009,610.84 and 425,590.48

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Solution

The fourth proportional to 731,455, 1,009,610.84 and 425,590.48 is: 587,432.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,455 : 1,009,610.84 = 425,590.48 : x
  2. Step 2: Convert to fraction form
    731,455/1,009,610.84 = 425,590.48/x
  3. Step 3: Cross multiply
    731,455x = 1,009,610.84 × 425,590.48
  4. Step 4: Simplify right side
    731,455x = 429,680,762,008.80
  5. Step 5: Solve for x
    x = 429,680,762,008.80/731,455
  6. Step 6: Final answer
    x = 587,432.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.