Home / 1,189,520.93-1,641,540.50-645,656.83

Finding the Fourth Proportional to 1,189,520.93, 1,641,540.50 and 645,656.83

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Solution

The fourth proportional to 1,189,520.93, 1,641,540.50 and 645,656.83 is: 891,007.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,520.93 : 1,641,540.50 = 645,656.83 : x
  2. Step 2: Convert to fraction form
    1,189,520.93/1,641,540.50 = 645,656.83/x
  3. Step 3: Cross multiply
    1,189,520.93x = 1,641,540.50 × 645,656.83
  4. Step 4: Simplify right side
    1,189,520.93x = 1,059,871,835,546.62
  5. Step 5: Solve for x
    x = 1,059,871,835,546.62/1,189,520.93
  6. Step 6: Final answer
    x = 891,007.30

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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.