Home / 619,301.40-929,816.10-396,043.80

Finding the Fourth Proportional to 619,301.40, 929,816.10 and 396,043.80

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Solution

The fourth proportional to 619,301.40, 929,816.10 and 396,043.80 is: 594,618.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,301.40 : 929,816.10 = 396,043.80 : x
  2. Step 2: Convert to fraction form
    619,301.40/929,816.10 = 396,043.80/x
  3. Step 3: Cross multiply
    619,301.40x = 929,816.10 × 396,043.80
  4. Step 4: Simplify right side
    619,301.40x = 368,247,901,545.18
  5. Step 5: Solve for x
    x = 368,247,901,545.18/619,301.40
  6. Step 6: Final answer
    x = 594,618.23

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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.