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Finding the Fourth Proportional to 615,990.54, 850,057.98 and 344,062.30

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Solution

The fourth proportional to 615,990.54, 850,057.98 and 344,062.30 is: 474,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,990.54 : 850,057.98 = 344,062.30 : x
  2. Step 2: Convert to fraction form
    615,990.54/850,057.98 = 344,062.30/x
  3. Step 3: Cross multiply
    615,990.54x = 850,057.98 × 344,062.30
  4. Step 4: Simplify right side
    615,990.54x = 292,472,903,732.15
  5. Step 5: Solve for x
    x = 292,472,903,732.15/615,990.54
  6. Step 6: Final answer
    x = 474,800.97

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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.