Home / 1,187,904.42-1,639,290.96-644,029.92

Finding the Fourth Proportional to 1,187,904.42, 1,639,290.96 and 644,029.92

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Solution

The fourth proportional to 1,187,904.42, 1,639,290.96 and 644,029.92 is: 888,752.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,904.42 : 1,639,290.96 = 644,029.92 : x
  2. Step 2: Convert to fraction form
    1,187,904.42/1,639,290.96 = 644,029.92/x
  3. Step 3: Cross multiply
    1,187,904.42x = 1,639,290.96 × 644,029.92
  4. Step 4: Simplify right side
    1,187,904.42x = 1,055,752,425,825.52
  5. Step 5: Solve for x
    x = 1,055,752,425,825.52/1,187,904.42
  6. Step 6: Final answer
    x = 888,752.00

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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.