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Finding the Fourth Proportional to 381,010.85, 532,715.35 and 381,010.85

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Solution

The fourth proportional to 381,010.85, 532,715.35 and 381,010.85 is: 532,715.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,010.85 : 532,715.35 = 381,010.85 : x
  2. Step 2: Convert to fraction form
    381,010.85/532,715.35 = 381,010.85/x
  3. Step 3: Cross multiply
    381,010.85x = 532,715.35 × 381,010.85
  4. Step 4: Simplify right side
    381,010.85x = 202,970,328,311.55
  5. Step 5: Solve for x
    x = 202,970,328,311.55/381,010.85
  6. Step 6: Final answer
    x = 532,715.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.