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Finding the Fourth Proportional to 543,400.17, 813,193.29 and 436,521.48

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Solution

The fourth proportional to 543,400.17, 813,193.29 and 436,521.48 is: 653,250.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,400.17 : 813,193.29 = 436,521.48 : x
  2. Step 2: Convert to fraction form
    543,400.17/813,193.29 = 436,521.48/x
  3. Step 3: Cross multiply
    543,400.17x = 813,193.29 × 436,521.48
  4. Step 4: Simplify right side
    543,400.17x = 354,976,338,476.87
  5. Step 5: Solve for x
    x = 354,976,338,476.87/543,400.17
  6. Step 6: Final answer
    x = 653,250.33

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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.