Home / 437,577.20-656,365.80-105,153.20

Finding the Fourth Proportional to 437,577.20, 656,365.80 and 105,153.20

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Solution

The fourth proportional to 437,577.20, 656,365.80 and 105,153.20 is: 157,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,577.20 : 656,365.80 = 105,153.20 : x
  2. Step 2: Convert to fraction form
    437,577.20/656,365.80 = 105,153.20/x
  3. Step 3: Cross multiply
    437,577.20x = 656,365.80 × 105,153.20
  4. Step 4: Simplify right side
    437,577.20x = 69,018,964,240.56
  5. Step 5: Solve for x
    x = 69,018,964,240.56/437,577.20
  6. Step 6: Final answer
    x = 157,729.80

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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.