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Finding the Fourth Proportional to 615,878.80, 923,626.20 and 242,016.40

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Solution

The fourth proportional to 615,878.80, 923,626.20 and 242,016.40 is: 362,949.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,878.80 : 923,626.20 = 242,016.40 : x
  2. Step 2: Convert to fraction form
    615,878.80/923,626.20 = 242,016.40/x
  3. Step 3: Cross multiply
    615,878.80x = 923,626.20 × 242,016.40
  4. Step 4: Simplify right side
    615,878.80x = 223,532,687,869.68
  5. Step 5: Solve for x
    x = 223,532,687,869.68/615,878.80
  6. Step 6: Final answer
    x = 362,949.15

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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.