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Finding the Fourth Proportional to 617,956.80, 926,935.20 and 197,246.40

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Solution

The fourth proportional to 617,956.80, 926,935.20 and 197,246.40 is: 295,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,956.80 : 926,935.20 = 197,246.40 : x
  2. Step 2: Convert to fraction form
    617,956.80/926,935.20 = 197,246.40/x
  3. Step 3: Cross multiply
    617,956.80x = 926,935.20 × 197,246.40
  4. Step 4: Simplify right side
    617,956.80x = 182,834,631,233.28
  5. Step 5: Solve for x
    x = 182,834,631,233.28/617,956.80
  6. Step 6: Final answer
    x = 295,869.60

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.