Home / 1,189,174.67-1,641,065.50-645,310.57

Finding the Fourth Proportional to 1,189,174.67, 1,641,065.50 and 645,310.57

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Solution

The fourth proportional to 1,189,174.67, 1,641,065.50 and 645,310.57 is: 890,531.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,174.67 : 1,641,065.50 = 645,310.57 : x
  2. Step 2: Convert to fraction form
    1,189,174.67/1,641,065.50 = 645,310.57/x
  3. Step 3: Cross multiply
    1,189,174.67x = 1,641,065.50 × 645,310.57
  4. Step 4: Simplify right side
    1,189,174.67x = 1,058,996,913,212.34
  5. Step 5: Solve for x
    x = 1,058,996,913,212.34/1,189,174.67
  6. Step 6: Final answer
    x = 890,531.00

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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.