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Finding the Fourth Proportional to 659,632.29, 910,860.69 and 415,024.89

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Solution

The fourth proportional to 659,632.29, 910,860.69 and 415,024.89 is: 573,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,632.29 : 910,860.69 = 415,024.89 : x
  2. Step 2: Convert to fraction form
    659,632.29/910,860.69 = 415,024.89/x
  3. Step 3: Cross multiply
    659,632.29x = 910,860.69 × 415,024.89
  4. Step 4: Simplify right side
    659,632.29x = 378,029,857,672.57
  5. Step 5: Solve for x
    x = 378,029,857,672.57/659,632.29
  6. Step 6: Final answer
    x = 573,091.80

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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.