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Finding the Fourth Proportional to 354,701.80, 532,052.70 and 221,841.55

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Solution

The fourth proportional to 354,701.80, 532,052.70 and 221,841.55 is: 332,762.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,701.80 : 532,052.70 = 221,841.55 : x
  2. Step 2: Convert to fraction form
    354,701.80/532,052.70 = 221,841.55/x
  3. Step 3: Cross multiply
    354,701.80x = 532,052.70 × 221,841.55
  4. Step 4: Simplify right side
    354,701.80x = 118,031,395,649.69
  5. Step 5: Solve for x
    x = 118,031,395,649.69/354,701.80
  6. Step 6: Final answer
    x = 332,762.33

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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.