Home / 881,428.56-1,216,337.16-479,011.92

Finding the Fourth Proportional to 881,428.56, 1,216,337.16 and 479,011.92

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Solution

The fourth proportional to 881,428.56, 1,216,337.16 and 479,011.92 is: 661,017.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,428.56 : 1,216,337.16 = 479,011.92 : x
  2. Step 2: Convert to fraction form
    881,428.56/1,216,337.16 = 479,011.92/x
  3. Step 3: Cross multiply
    881,428.56x = 1,216,337.16 × 479,011.92
  4. Step 4: Simplify right side
    881,428.56x = 582,639,998,378.95
  5. Step 5: Solve for x
    x = 582,639,998,378.95/881,428.56
  6. Step 6: Final answer
    x = 661,017.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.