Home / 1,189,576.67-1,641,617.28-645,712.16

Finding the Fourth Proportional to 1,189,576.67, 1,641,617.28 and 645,712.16

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Solution

The fourth proportional to 1,189,576.67, 1,641,617.28 and 645,712.16 is: 891,083.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,576.67 : 1,641,617.28 = 645,712.16 : x
  2. Step 2: Convert to fraction form
    1,189,576.67/1,641,617.28 = 645,712.16/x
  3. Step 3: Cross multiply
    1,189,576.67x = 1,641,617.28 × 645,712.16
  4. Step 4: Simplify right side
    1,189,576.67x = 1,060,012,231,554.04
  5. Step 5: Solve for x
    x = 1,060,012,231,554.04/1,189,576.67
  6. Step 6: Final answer
    x = 891,083.58

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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.