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Finding the Fourth Proportional to 534,051.72, 801,075.56 and 218,508.53

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Solution

The fourth proportional to 534,051.72, 801,075.56 and 218,508.53 is: 327,761.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,051.72 : 801,075.56 = 218,508.53 : x
  2. Step 2: Convert to fraction form
    534,051.72/801,075.56 = 218,508.53/x
  3. Step 3: Cross multiply
    534,051.72x = 801,075.56 × 218,508.53
  4. Step 4: Simplify right side
    534,051.72x = 175,041,837,936.61
  5. Step 5: Solve for x
    x = 175,041,837,936.61/534,051.72
  6. Step 6: Final answer
    x = 327,761.96

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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.