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Finding the Fourth Proportional to 354,867.80, 532,301.70 and 177,402.20

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Solution

The fourth proportional to 354,867.80, 532,301.70 and 177,402.20 is: 266,103.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,867.80 : 532,301.70 = 177,402.20 : x
  2. Step 2: Convert to fraction form
    354,867.80/532,301.70 = 177,402.20/x
  3. Step 3: Cross multiply
    354,867.80x = 532,301.70 × 177,402.20
  4. Step 4: Simplify right side
    354,867.80x = 94,431,492,643.74
  5. Step 5: Solve for x
    x = 94,431,492,643.74/354,867.80
  6. Step 6: Final answer
    x = 266,103.30

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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.