Home / 1,191,712.38-1,644,543.45-647,861.64

Finding the Fourth Proportional to 1,191,712.38, 1,644,543.45 and 647,861.64

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Solution

The fourth proportional to 1,191,712.38, 1,644,543.45 and 647,861.64 is: 894,038.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,712.38 : 1,644,543.45 = 647,861.64 : x
  2. Step 2: Convert to fraction form
    1,191,712.38/1,644,543.45 = 647,861.64/x
  3. Step 3: Cross multiply
    1,191,712.38x = 1,644,543.45 × 647,861.64
  4. Step 4: Simplify right side
    1,191,712.38x = 1,065,436,616,568.26
  5. Step 5: Solve for x
    x = 1,065,436,616,568.26/1,191,712.38
  6. Step 6: Final answer
    x = 894,038.39

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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.