Home / 1,205,686.16-1,663,850.52-661,877.68

Finding the Fourth Proportional to 1,205,686.16, 1,663,850.52 and 661,877.68

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Solution

The fourth proportional to 1,205,686.16, 1,663,850.52 and 661,877.68 is: 913,393.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,686.16 : 1,663,850.52 = 661,877.68 : x
  2. Step 2: Convert to fraction form
    1,205,686.16/1,663,850.52 = 661,877.68/x
  3. Step 3: Cross multiply
    1,205,686.16x = 1,663,850.52 × 661,877.68
  4. Step 4: Simplify right side
    1,205,686.16x = 1,101,265,522,044.39
  5. Step 5: Solve for x
    x = 1,101,265,522,044.39/1,205,686.16
  6. Step 6: Final answer
    x = 913,393.19

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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.