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Finding the Fourth Proportional to 412,833.80, 619,250.70 and 369,531.20

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Solution

The fourth proportional to 412,833.80, 619,250.70 and 369,531.20 is: 554,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,833.80 : 619,250.70 = 369,531.20 : x
  2. Step 2: Convert to fraction form
    412,833.80/619,250.70 = 369,531.20/x
  3. Step 3: Cross multiply
    412,833.80x = 619,250.70 × 369,531.20
  4. Step 4: Simplify right side
    412,833.80x = 228,832,454,271.84
  5. Step 5: Solve for x
    x = 228,832,454,271.84/412,833.80
  6. Step 6: Final answer
    x = 554,296.80

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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.