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Finding the Fourth Proportional to 370,600.48, 556,644.64 and 221,132.48

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Solution

The fourth proportional to 370,600.48, 556,644.64 and 221,132.48 is: 332,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,600.48 : 556,644.64 = 221,132.48 : x
  2. Step 2: Convert to fraction form
    370,600.48/556,644.64 = 221,132.48/x
  3. Step 3: Cross multiply
    370,600.48x = 556,644.64 × 221,132.48
  4. Step 4: Simplify right side
    370,600.48x = 123,092,209,721.91
  5. Step 5: Solve for x
    x = 123,092,209,721.91/370,600.48
  6. Step 6: Final answer
    x = 332,142.61

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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.