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Finding the Fourth Proportional to 615,175.80, 922,763.70 and 349,455.30

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Solution

The fourth proportional to 615,175.80, 922,763.70 and 349,455.30 is: 524,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,175.80 : 922,763.70 = 349,455.30 : x
  2. Step 2: Convert to fraction form
    615,175.80/922,763.70 = 349,455.30/x
  3. Step 3: Cross multiply
    615,175.80x = 922,763.70 × 349,455.30
  4. Step 4: Simplify right side
    615,175.80x = 322,464,665,612.61
  5. Step 5: Solve for x
    x = 322,464,665,612.61/615,175.80
  6. Step 6: Final answer
    x = 524,182.95

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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.