Home / 881,286.76-1,216,077.02-499,231.72

Finding the Fourth Proportional to 881,286.76, 1,216,077.02 and 499,231.72

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Solution

The fourth proportional to 881,286.76, 1,216,077.02 and 499,231.72 is: 688,883.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,286.76 : 1,216,077.02 = 499,231.72 : x
  2. Step 2: Convert to fraction form
    881,286.76/1,216,077.02 = 499,231.72/x
  3. Step 3: Cross multiply
    881,286.76x = 1,216,077.02 × 499,231.72
  4. Step 4: Simplify right side
    881,286.76x = 607,104,222,347.07
  5. Step 5: Solve for x
    x = 607,104,222,347.07/881,286.76
  6. Step 6: Final answer
    x = 688,883.86

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Double scale
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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.