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Finding the Fourth Proportional to 356,075.70, 534,113.55 and 343,634.10

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Solution

The fourth proportional to 356,075.70, 534,113.55 and 343,634.10 is: 515,451.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,075.70 : 534,113.55 = 343,634.10 : x
  2. Step 2: Convert to fraction form
    356,075.70/534,113.55 = 343,634.10/x
  3. Step 3: Cross multiply
    356,075.70x = 534,113.55 × 343,634.10
  4. Step 4: Simplify right side
    356,075.70x = 183,539,629,052.06
  5. Step 5: Solve for x
    x = 183,539,629,052.06/356,075.70
  6. Step 6: Final answer
    x = 515,451.15

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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.