Home / 437,557.60-656,336.40-257,458.15

Finding the Fourth Proportional to 437,557.60, 656,336.40 and 257,458.15

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Solution

The fourth proportional to 437,557.60, 656,336.40 and 257,458.15 is: 386,187.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,557.60 : 656,336.40 = 257,458.15 : x
  2. Step 2: Convert to fraction form
    437,557.60/656,336.40 = 257,458.15/x
  3. Step 3: Cross multiply
    437,557.60x = 656,336.40 × 257,458.15
  4. Step 4: Simplify right side
    437,557.60x = 168,979,155,321.66
  5. Step 5: Solve for x
    x = 168,979,155,321.66/437,557.60
  6. Step 6: Final answer
    x = 386,187.23

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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.