Home / 656,578.20-984,284.10-390,055.80

Finding the Fourth Proportional to 656,578.20, 984,284.10 and 390,055.80

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Solution

The fourth proportional to 656,578.20, 984,284.10 and 390,055.80 is: 584,737.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,578.20 : 984,284.10 = 390,055.80 : x
  2. Step 2: Convert to fraction form
    656,578.20/984,284.10 = 390,055.80/x
  3. Step 3: Cross multiply
    656,578.20x = 984,284.10 × 390,055.80
  4. Step 4: Simplify right side
    656,578.20x = 383,925,722,052.78
  5. Step 5: Solve for x
    x = 383,925,722,052.78/656,578.20
  6. Step 6: Final answer
    x = 584,737.24

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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.