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Finding the Fourth Proportional to 604,661.80, 907,691.10 and 324,725.80

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Solution

The fourth proportional to 604,661.80, 907,691.10 and 324,725.80 is: 487,463.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,661.80 : 907,691.10 = 324,725.80 : x
  2. Step 2: Convert to fraction form
    604,661.80/907,691.10 = 324,725.80/x
  3. Step 3: Cross multiply
    604,661.80x = 907,691.10 × 324,725.80
  4. Step 4: Simplify right side
    604,661.80x = 294,750,718,600.38
  5. Step 5: Solve for x
    x = 294,750,718,600.38/604,661.80
  6. Step 6: Final answer
    x = 487,463.77

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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.