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Finding the Fourth Proportional to 372,999.84, 559,987.52 and 221,473.60

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Solution

The fourth proportional to 372,999.84, 559,987.52 and 221,473.60 is: 332,500.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,999.84 : 559,987.52 = 221,473.60 : x
  2. Step 2: Convert to fraction form
    372,999.84/559,987.52 = 221,473.60/x
  3. Step 3: Cross multiply
    372,999.84x = 559,987.52 × 221,473.60
  4. Step 4: Simplify right side
    372,999.84x = 124,022,452,009.47
  5. Step 5: Solve for x
    x = 124,022,452,009.47/372,999.84
  6. Step 6: Final answer
    x = 332,500.01

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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.