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Finding the Fourth Proportional to 424,363.71, 585,627.72 and 243,075.53

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Solution

The fourth proportional to 424,363.71, 585,627.72 and 243,075.53 is: 335,447.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,363.71 : 585,627.72 = 243,075.53 : x
  2. Step 2: Convert to fraction form
    424,363.71/585,627.72 = 243,075.53/x
  3. Step 3: Cross multiply
    424,363.71x = 585,627.72 × 243,075.53
  4. Step 4: Simplify right side
    424,363.71x = 142,351,765,493.55
  5. Step 5: Solve for x
    x = 142,351,765,493.55/424,363.71
  6. Step 6: Final answer
    x = 335,447.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.