Home / 1,182,560.16-1,631,932.70-638,695.80

Finding the Fourth Proportional to 1,182,560.16, 1,631,932.70 and 638,695.80

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Solution

The fourth proportional to 1,182,560.16, 1,631,932.70 and 638,695.80 is: 881,400.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,560.16 : 1,631,932.70 = 638,695.80 : x
  2. Step 2: Convert to fraction form
    1,182,560.16/1,631,932.70 = 638,695.80/x
  3. Step 3: Cross multiply
    1,182,560.16x = 1,631,932.70 × 638,695.80
  4. Step 4: Simplify right side
    1,182,560.16x = 1,042,308,561,372.66
  5. Step 5: Solve for x
    x = 1,042,308,561,372.66/1,182,560.16
  6. Step 6: Final answer
    x = 881,400.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.