Home / 1,205,598.78-1,663,747.77-661,785.13

Finding the Fourth Proportional to 1,205,598.78, 1,663,747.77 and 661,785.13

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Solution

The fourth proportional to 1,205,598.78, 1,663,747.77 and 661,785.13 is: 913,275.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,598.78 : 1,663,747.77 = 661,785.13 : x
  2. Step 2: Convert to fraction form
    1,205,598.78/1,663,747.77 = 661,785.13/x
  3. Step 3: Cross multiply
    1,205,598.78x = 1,663,747.77 × 661,785.13
  4. Step 4: Simplify right side
    1,205,598.78x = 1,101,043,534,256.66
  5. Step 5: Solve for x
    x = 1,101,043,534,256.66/1,205,598.78
  6. Step 6: Final answer
    x = 913,275.26

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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.