Home / 878,099.56-1,211,833.38-538,521.64

Finding the Fourth Proportional to 878,099.56, 1,211,833.38 and 538,521.64

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Solution

The fourth proportional to 878,099.56, 1,211,833.38 and 538,521.64 is: 743,194.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,099.56 : 1,211,833.38 = 538,521.64 : x
  2. Step 2: Convert to fraction form
    878,099.56/1,211,833.38 = 538,521.64/x
  3. Step 3: Cross multiply
    878,099.56x = 1,211,833.38 × 538,521.64
  4. Step 4: Simplify right side
    878,099.56x = 652,598,499,204.34
  5. Step 5: Solve for x
    x = 652,598,499,204.34/878,099.56
  6. Step 6: Final answer
    x = 743,194.20

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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.