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Finding the Fourth Proportional to 354,895.20, 532,342.80 and 186,350.40

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Solution

The fourth proportional to 354,895.20, 532,342.80 and 186,350.40 is: 279,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,895.20 : 532,342.80 = 186,350.40 : x
  2. Step 2: Convert to fraction form
    354,895.20/532,342.80 = 186,350.40/x
  3. Step 3: Cross multiply
    354,895.20x = 532,342.80 × 186,350.40
  4. Step 4: Simplify right side
    354,895.20x = 99,202,293,717.12
  5. Step 5: Solve for x
    x = 99,202,293,717.12/354,895.20
  6. Step 6: Final answer
    x = 279,525.60

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1.5x scale

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.