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Finding the Fourth Proportional to 522,818.70, 784,211.85 and 148,841.70

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Solution

The fourth proportional to 522,818.70, 784,211.85 and 148,841.70 is: 223,257.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,818.70 : 784,211.85 = 148,841.70 : x
  2. Step 2: Convert to fraction form
    522,818.70/784,211.85 = 148,841.70/x
  3. Step 3: Cross multiply
    522,818.70x = 784,211.85 × 148,841.70
  4. Step 4: Simplify right side
    522,818.70x = 116,723,424,914.15
  5. Step 5: Solve for x
    x = 116,723,424,914.15/522,818.70
  6. Step 6: Final answer
    x = 223,257.94

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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.