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Finding the Fourth Proportional to 562,074.12, 775,983.24 and 371,639.88

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Solution

The fourth proportional to 562,074.12, 775,983.24 and 371,639.88 is: 513,075.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,074.12 : 775,983.24 = 371,639.88 : x
  2. Step 2: Convert to fraction form
    562,074.12/775,983.24 = 371,639.88/x
  3. Step 3: Cross multiply
    562,074.12x = 775,983.24 × 371,639.88
  4. Step 4: Simplify right side
    562,074.12x = 288,386,318,195.61
  5. Step 5: Solve for x
    x = 288,386,318,195.61/562,074.12
  6. Step 6: Final answer
    x = 513,075.25

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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.