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Finding the Fourth Proportional to 354,847.60, 532,271.40 and 329,186.80

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Solution

The fourth proportional to 354,847.60, 532,271.40 and 329,186.80 is: 493,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,847.60 : 532,271.40 = 329,186.80 : x
  2. Step 2: Convert to fraction form
    354,847.60/532,271.40 = 329,186.80/x
  3. Step 3: Cross multiply
    354,847.60x = 532,271.40 × 329,186.80
  4. Step 4: Simplify right side
    354,847.60x = 175,216,718,897.52
  5. Step 5: Solve for x
    x = 175,216,718,897.52/354,847.60
  6. Step 6: Final answer
    x = 493,780.20

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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.