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Finding the Fourth Proportional to 652,113.80, 978,170.70 and 372,177.80

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Solution

The fourth proportional to 652,113.80, 978,170.70 and 372,177.80 is: 558,266.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,113.80 : 978,170.70 = 372,177.80 : x
  2. Step 2: Convert to fraction form
    652,113.80/978,170.70 = 372,177.80/x
  3. Step 3: Cross multiply
    652,113.80x = 978,170.70 × 372,177.80
  4. Step 4: Simplify right side
    652,113.80x = 364,053,419,150.46
  5. Step 5: Solve for x
    x = 364,053,419,150.46/652,113.80
  6. Step 6: Final answer
    x = 558,266.70

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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.