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Finding the Fourth Proportional to 372,225.40, 558,338.10 and 288,244.60

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Solution

The fourth proportional to 372,225.40, 558,338.10 and 288,244.60 is: 432,366.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,225.40 : 558,338.10 = 288,244.60 : x
  2. Step 2: Convert to fraction form
    372,225.40/558,338.10 = 288,244.60/x
  3. Step 3: Cross multiply
    372,225.40x = 558,338.10 × 288,244.60
  4. Step 4: Simplify right side
    372,225.40x = 160,937,942,299.26
  5. Step 5: Solve for x
    x = 160,937,942,299.26/372,225.40
  6. Step 6: Final answer
    x = 432,366.90

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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.