Home / 1,189,578.66-1,641,620.04-645,714.16

Finding the Fourth Proportional to 1,189,578.66, 1,641,620.04 and 645,714.16

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Solution

The fourth proportional to 1,189,578.66, 1,641,620.04 and 645,714.16 is: 891,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,578.66 : 1,641,620.04 = 645,714.16 : x
  2. Step 2: Convert to fraction form
    1,189,578.66/1,641,620.04 = 645,714.16/x
  3. Step 3: Cross multiply
    1,189,578.66x = 1,641,620.04 × 645,714.16
  4. Step 4: Simplify right side
    1,189,578.66x = 1,060,017,305,167.77
  5. Step 5: Solve for x
    x = 1,060,017,305,167.77/1,189,578.66
  6. Step 6: Final answer
    x = 891,086.35

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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.