Home / 881,188.56-1,216,043.36-478,780.56

Finding the Fourth Proportional to 881,188.56, 1,216,043.36 and 478,780.56

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Solution

The fourth proportional to 881,188.56, 1,216,043.36 and 478,780.56 is: 660,718.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,188.56 : 1,216,043.36 = 478,780.56 : x
  2. Step 2: Convert to fraction form
    881,188.56/1,216,043.36 = 478,780.56/x
  3. Step 3: Cross multiply
    881,188.56x = 1,216,043.36 × 478,780.56
  4. Step 4: Simplify right side
    881,188.56x = 582,217,920,885.08
  5. Step 5: Solve for x
    x = 582,217,920,885.08/881,188.56
  6. Step 6: Final answer
    x = 660,718.88

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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.