Home / 437,990.52-656,985.78-105,566.52

Finding the Fourth Proportional to 437,990.52, 656,985.78 and 105,566.52

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Solution

The fourth proportional to 437,990.52, 656,985.78 and 105,566.52 is: 158,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,990.52 : 656,985.78 = 105,566.52 : x
  2. Step 2: Convert to fraction form
    437,990.52/656,985.78 = 105,566.52/x
  3. Step 3: Cross multiply
    437,990.52x = 656,985.78 × 105,566.52
  4. Step 4: Simplify right side
    437,990.52x = 69,355,702,484.09
  5. Step 5: Solve for x
    x = 69,355,702,484.09/437,990.52
  6. Step 6: Final answer
    x = 158,349.78

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Similar ratio
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1.5x scale

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.