Home / 1,189,553.60-1,641,585.24-645,689.30

Finding the Fourth Proportional to 1,189,553.60, 1,641,585.24 and 645,689.30

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Solution

The fourth proportional to 1,189,553.60, 1,641,585.24 and 645,689.30 is: 891,051.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,553.60 : 1,641,585.24 = 645,689.30 : x
  2. Step 2: Convert to fraction form
    1,189,553.60/1,641,585.24 = 645,689.30/x
  3. Step 3: Cross multiply
    1,189,553.60x = 1,641,585.24 × 645,689.30
  4. Step 4: Simplify right side
    1,189,553.60x = 1,059,954,024,505.93
  5. Step 5: Solve for x
    x = 1,059,954,024,505.93/1,189,553.60
  6. Step 6: Final answer
    x = 891,051.92

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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.