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Finding the Fourth Proportional to 543,131.53, 813,386.00 and 272,408.27

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Solution

The fourth proportional to 543,131.53, 813,386.00 and 272,408.27 is: 407,954.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,131.53 : 813,386.00 = 272,408.27 : x
  2. Step 2: Convert to fraction form
    543,131.53/813,386.00 = 272,408.27/x
  3. Step 3: Cross multiply
    543,131.53x = 813,386.00 × 272,408.27
  4. Step 4: Simplify right side
    543,131.53x = 221,573,069,716.31
  5. Step 5: Solve for x
    x = 221,573,069,716.31/543,131.53
  6. Step 6: Final answer
    x = 407,954.72

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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.