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Finding the Fourth Proportional to 463,115.68, 638,803.08 and 371,454.90

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Solution

The fourth proportional to 463,115.68, 638,803.08 and 371,454.90 is: 512,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,115.68 : 638,803.08 = 371,454.90 : x
  2. Step 2: Convert to fraction form
    463,115.68/638,803.08 = 371,454.90/x
  3. Step 3: Cross multiply
    463,115.68x = 638,803.08 × 371,454.90
  4. Step 4: Simplify right side
    463,115.68x = 237,286,532,557.50
  5. Step 5: Solve for x
    x = 237,286,532,557.50/463,115.68
  6. Step 6: Final answer
    x = 512,369.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.