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Finding the Fourth Proportional to 527,246.40, 790,869.60 and 242,936.40

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Solution

The fourth proportional to 527,246.40, 790,869.60 and 242,936.40 is: 364,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,246.40 : 790,869.60 = 242,936.40 : x
  2. Step 2: Convert to fraction form
    527,246.40/790,869.60 = 242,936.40/x
  3. Step 3: Cross multiply
    527,246.40x = 790,869.60 × 242,936.40
  4. Step 4: Simplify right side
    527,246.40x = 192,131,013,493.44
  5. Step 5: Solve for x
    x = 192,131,013,493.44/527,246.40
  6. Step 6: Final answer
    x = 364,404.60

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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.