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Finding the Fourth Proportional to 372,889.58, 559,822.19 and 221,363.28

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Solution

The fourth proportional to 372,889.58, 559,822.19 and 221,363.28 is: 332,334.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,889.58 : 559,822.19 = 221,363.28 : x
  2. Step 2: Convert to fraction form
    372,889.58/559,822.19 = 221,363.28/x
  3. Step 3: Cross multiply
    372,889.58x = 559,822.19 × 221,363.28
  4. Step 4: Simplify right side
    372,889.58x = 123,924,075,088.37
  5. Step 5: Solve for x
    x = 123,924,075,088.37/372,889.58
  6. Step 6: Final answer
    x = 332,334.51

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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.