Home / 1,189,582.68-1,641,625.56-645,718.16

Finding the Fourth Proportional to 1,189,582.68, 1,641,625.56 and 645,718.16

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Solution

The fourth proportional to 1,189,582.68, 1,641,625.56 and 645,718.16 is: 891,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,582.68 : 1,641,625.56 = 645,718.16 : x
  2. Step 2: Convert to fraction form
    1,189,582.68/1,641,625.56 = 645,718.16/x
  3. Step 3: Cross multiply
    1,189,582.68x = 1,641,625.56 × 645,718.16
  4. Step 4: Simplify right side
    1,189,582.68x = 1,060,027,436,012.17
  5. Step 5: Solve for x
    x = 1,060,027,436,012.17/1,189,582.68
  6. Step 6: Final answer
    x = 891,091.85

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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.