Home / 1,191,079.17-1,643,686.16-647,215.02

Finding the Fourth Proportional to 1,191,079.17, 1,643,686.16 and 647,215.02

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Solution

The fourth proportional to 1,191,079.17, 1,643,686.16 and 647,215.02 is: 893,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,079.17 : 1,643,686.16 = 647,215.02 : x
  2. Step 2: Convert to fraction form
    1,191,079.17/1,643,686.16 = 647,215.02/x
  3. Step 3: Cross multiply
    1,191,079.17x = 1,643,686.16 × 647,215.02
  4. Step 4: Simplify right side
    1,191,079.17x = 1,063,818,367,682.05
  5. Step 5: Solve for x
    x = 1,063,818,367,682.05/1,191,079.17
  6. Step 6: Final answer
    x = 893,155.04

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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.