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Finding the Fourth Proportional to 541,356.60, 812,107.80 and 186,479.40

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Solution

The fourth proportional to 541,356.60, 812,107.80 and 186,479.40 is: 279,744.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,356.60 : 812,107.80 = 186,479.40 : x
  2. Step 2: Convert to fraction form
    541,356.60/812,107.80 = 186,479.40/x
  3. Step 3: Cross multiply
    541,356.60x = 812,107.80 × 186,479.40
  4. Step 4: Simplify right side
    541,356.60x = 151,441,375,279.32
  5. Step 5: Solve for x
    x = 151,441,375,279.32/541,356.60
  6. Step 6: Final answer
    x = 279,744.21

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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.