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Finding the Fourth Proportional to 354,808.80, 532,371.15 and 186,288.30

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Solution

The fourth proportional to 354,808.80, 532,371.15 and 186,288.30 is: 279,515.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,808.80 : 532,371.15 = 186,288.30 : x
  2. Step 2: Convert to fraction form
    354,808.80/532,371.15 = 186,288.30/x
  3. Step 3: Cross multiply
    354,808.80x = 532,371.15 × 186,288.30
  4. Step 4: Simplify right side
    354,808.80x = 99,174,516,502.55
  5. Step 5: Solve for x
    x = 99,174,516,502.55/354,808.80
  6. Step 6: Final answer
    x = 279,515.38

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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.