Home / 805,957.28-1,112,223.36-443,404.64

Finding the Fourth Proportional to 805,957.28, 1,112,223.36 and 443,404.64

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Solution

The fourth proportional to 805,957.28, 1,112,223.36 and 443,404.64 is: 611,899.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,957.28 : 1,112,223.36 = 443,404.64 : x
  2. Step 2: Convert to fraction form
    805,957.28/1,112,223.36 = 443,404.64/x
  3. Step 3: Cross multiply
    805,957.28x = 1,112,223.36 × 443,404.64
  4. Step 4: Simplify right side
    805,957.28x = 493,164,998,540.39
  5. Step 5: Solve for x
    x = 493,164,998,540.39/805,957.28
  6. Step 6: Final answer
    x = 611,899.68

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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.