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Finding the Fourth Proportional to 615,211.40, 922,644.30 and 194,616.20

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Solution

The fourth proportional to 615,211.40, 922,644.30 and 194,616.20 is: 291,869.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,211.40 : 922,644.30 = 194,616.20 : x
  2. Step 2: Convert to fraction form
    615,211.40/922,644.30 = 194,616.20/x
  3. Step 3: Cross multiply
    615,211.40x = 922,644.30 × 194,616.20
  4. Step 4: Simplify right side
    615,211.40x = 179,561,527,617.66
  5. Step 5: Solve for x
    x = 179,561,527,617.66/615,211.40
  6. Step 6: Final answer
    x = 291,869.64

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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.