Home / 656,019.20-983,414.40-513,785.60

Finding the Fourth Proportional to 656,019.20, 983,414.40 and 513,785.60

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Solution

The fourth proportional to 656,019.20, 983,414.40 and 513,785.60 is: 770,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,019.20 : 983,414.40 = 513,785.60 : x
  2. Step 2: Convert to fraction form
    656,019.20/983,414.40 = 513,785.60/x
  3. Step 3: Cross multiply
    656,019.20x = 983,414.40 × 513,785.60
  4. Step 4: Simplify right side
    656,019.20x = 505,264,157,552.64
  5. Step 5: Solve for x
    x = 505,264,157,552.64/656,019.20
  6. Step 6: Final answer
    x = 770,197.21

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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.