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Finding the Fourth Proportional to 540,649.44, 746,188.56 and 314,428.32

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Solution

The fourth proportional to 540,649.44, 746,188.56 and 314,428.32 is: 433,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,649.44 : 746,188.56 = 314,428.32 : x
  2. Step 2: Convert to fraction form
    540,649.44/746,188.56 = 314,428.32/x
  3. Step 3: Cross multiply
    540,649.44x = 746,188.56 × 314,428.32
  4. Step 4: Simplify right side
    540,649.44x = 234,622,815,324.02
  5. Step 5: Solve for x
    x = 234,622,815,324.02/540,649.44
  6. Step 6: Final answer
    x = 433,964.78

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Similar ratio
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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.