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Finding the Fourth Proportional to 461,721.80, 692,582.70 and 225,525.80

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Solution

The fourth proportional to 461,721.80, 692,582.70 and 225,525.80 is: 338,288.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,721.80 : 692,582.70 = 225,525.80 : x
  2. Step 2: Convert to fraction form
    461,721.80/692,582.70 = 225,525.80/x
  3. Step 3: Cross multiply
    461,721.80x = 692,582.70 × 225,525.80
  4. Step 4: Simplify right side
    461,721.80x = 156,195,267,483.66
  5. Step 5: Solve for x
    x = 156,195,267,483.66/461,721.80
  6. Step 6: Final answer
    x = 338,288.70

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Similar ratio
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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.