Home / 1,289,546.38-1,779,590.14-708,832.91

Finding the Fourth Proportional to 1,289,546.38, 1,779,590.14 and 708,832.91

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Solution

The fourth proportional to 1,289,546.38, 1,779,590.14 and 708,832.91 is: 978,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,546.38 : 1,779,590.14 = 708,832.91 : x
  2. Step 2: Convert to fraction form
    1,289,546.38/1,779,590.14 = 708,832.91/x
  3. Step 3: Cross multiply
    1,289,546.38x = 1,779,590.14 × 708,832.91
  4. Step 4: Simplify right side
    1,289,546.38x = 1,261,432,060,220.40
  5. Step 5: Solve for x
    x = 1,261,432,060,220.40/1,289,546.38
  6. Step 6: Final answer
    x = 978,198.29

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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.