Home / 1,205,291.91-1,663,350.73-661,447.29

Finding the Fourth Proportional to 1,205,291.91, 1,663,350.73 and 661,447.29

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Solution

The fourth proportional to 1,205,291.91, 1,663,350.73 and 661,447.29 is: 912,823.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,291.91 : 1,663,350.73 = 661,447.29 : x
  2. Step 2: Convert to fraction form
    1,205,291.91/1,663,350.73 = 661,447.29/x
  3. Step 3: Cross multiply
    1,205,291.91x = 1,663,350.73 × 661,447.29
  4. Step 4: Simplify right side
    1,205,291.91x = 1,100,218,832,678.02
  5. Step 5: Solve for x
    x = 1,100,218,832,678.02/1,205,291.91
  6. Step 6: Final answer
    x = 912,823.54

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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.