Home / 1,191,321.11-1,644,035.84-647,456.93

Finding the Fourth Proportional to 1,191,321.11, 1,644,035.84 and 647,456.93

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Solution

The fourth proportional to 1,191,321.11, 1,644,035.84 and 647,456.93 is: 893,497.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,321.11 : 1,644,035.84 = 647,456.93 : x
  2. Step 2: Convert to fraction form
    1,191,321.11/1,644,035.84 = 647,456.93/x
  3. Step 3: Cross multiply
    1,191,321.11x = 1,644,035.84 × 647,456.93
  4. Step 4: Simplify right side
    1,191,321.11x = 1,064,442,386,318.91
  5. Step 5: Solve for x
    x = 1,064,442,386,318.91/1,191,321.11
  6. Step 6: Final answer
    x = 893,497.46

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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.