Home / 517,111.44-711,989.43-439,423.23

Finding the Fourth Proportional to 517,111.44, 711,989.43 and 439,423.23

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Solution

The fourth proportional to 517,111.44, 711,989.43 and 439,423.23 is: 605,023.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,111.44 : 711,989.43 = 439,423.23 : x
  2. Step 2: Convert to fraction form
    517,111.44/711,989.43 = 439,423.23/x
  3. Step 3: Cross multiply
    517,111.44x = 711,989.43 × 439,423.23
  4. Step 4: Simplify right side
    517,111.44x = 312,864,694,076.11
  5. Step 5: Solve for x
    x = 312,864,694,076.11/517,111.44
  6. Step 6: Final answer
    x = 605,023.73

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Double scale
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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.