Home / 352,921.20-529,381.80-187,033.20

Finding the Fourth Proportional to 352,921.20, 529,381.80 and 187,033.20

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Solution

The fourth proportional to 352,921.20, 529,381.80 and 187,033.20 is: 280,549.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,921.20 : 529,381.80 = 187,033.20 : x
  2. Step 2: Convert to fraction form
    352,921.20/529,381.80 = 187,033.20/x
  3. Step 3: Cross multiply
    352,921.20x = 529,381.80 × 187,033.20
  4. Step 4: Simplify right side
    352,921.20x = 99,011,972,075.76
  5. Step 5: Solve for x
    x = 99,011,972,075.76/352,921.20
  6. Step 6: Final answer
    x = 280,549.80

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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.