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Finding the Fourth Proportional to 543,102.60, 813,681.90 and 262,000.20

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Solution

The fourth proportional to 543,102.60, 813,681.90 and 262,000.20 is: 392,531.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,102.60 : 813,681.90 = 262,000.20 : x
  2. Step 2: Convert to fraction form
    543,102.60/813,681.90 = 262,000.20/x
  3. Step 3: Cross multiply
    543,102.60x = 813,681.90 × 262,000.20
  4. Step 4: Simplify right side
    543,102.60x = 213,184,820,536.38
  5. Step 5: Solve for x
    x = 213,184,820,536.38/543,102.60
  6. Step 6: Final answer
    x = 392,531.39

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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.