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Finding the Fourth Proportional to 615,407.76, 923,523.98 and 216,049.71

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Solution

The fourth proportional to 615,407.76, 923,523.98 and 216,049.71 is: 324,219.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,407.76 : 923,523.98 = 216,049.71 : x
  2. Step 2: Convert to fraction form
    615,407.76/923,523.98 = 216,049.71/x
  3. Step 3: Cross multiply
    615,407.76x = 923,523.98 × 216,049.71
  4. Step 4: Simplify right side
    615,407.76x = 199,527,088,057.05
  5. Step 5: Solve for x
    x = 199,527,088,057.05/615,407.76
  6. Step 6: Final answer
    x = 324,219.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.