Home / 1,205,851.97-1,663,970.77-661,985.57

Finding the Fourth Proportional to 1,205,851.97, 1,663,970.77 and 661,985.57

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Solution

The fourth proportional to 1,205,851.97, 1,663,970.77 and 661,985.57 is: 913,482.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,851.97 : 1,663,970.77 = 661,985.57 : x
  2. Step 2: Convert to fraction form
    1,205,851.97/1,663,970.77 = 661,985.57/x
  3. Step 3: Cross multiply
    1,205,851.97x = 1,663,970.77 × 661,985.57
  4. Step 4: Simplify right side
    1,205,851.97x = 1,101,524,638,641.79
  5. Step 5: Solve for x
    x = 1,101,524,638,641.79/1,205,851.97
  6. Step 6: Final answer
    x = 913,482.47

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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.