Home / 437,515.07-656,309.66-121,972.28

Finding the Fourth Proportional to 437,515.07, 656,309.66 and 121,972.28

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Solution

The fourth proportional to 437,515.07, 656,309.66 and 121,972.28 is: 182,968.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,515.07 : 656,309.66 = 121,972.28 : x
  2. Step 2: Convert to fraction form
    437,515.07/656,309.66 = 121,972.28/x
  3. Step 3: Cross multiply
    437,515.07x = 656,309.66 × 121,972.28
  4. Step 4: Simplify right side
    437,515.07x = 80,051,581,724.82
  5. Step 5: Solve for x
    x = 80,051,581,724.82/437,515.07
  6. Step 6: Final answer
    x = 182,968.74

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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.