Home / 913,901.10-1,370,851.65-647,961.90

Finding the Fourth Proportional to 913,901.10, 1,370,851.65 and 647,961.90

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Solution

The fourth proportional to 913,901.10, 1,370,851.65 and 647,961.90 is: 971,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,901.10 : 1,370,851.65 = 647,961.90 : x
  2. Step 2: Convert to fraction form
    913,901.10/1,370,851.65 = 647,961.90/x
  3. Step 3: Cross multiply
    913,901.10x = 1,370,851.65 × 647,961.90
  4. Step 4: Simplify right side
    913,901.10x = 888,259,639,752.14
  5. Step 5: Solve for x
    x = 888,259,639,752.14/913,901.10
  6. Step 6: Final answer
    x = 971,942.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.