Home / 1,238,377.17-1,709,447.19-830,330.37

Finding the Fourth Proportional to 1,238,377.17, 1,709,447.19 and 830,330.37

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Solution

The fourth proportional to 1,238,377.17, 1,709,447.19 and 830,330.37 is: 1,146,182.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,377.17 : 1,709,447.19 = 830,330.37 : x
  2. Step 2: Convert to fraction form
    1,238,377.17/1,709,447.19 = 830,330.37/x
  3. Step 3: Cross multiply
    1,238,377.17x = 1,709,447.19 × 830,330.37
  4. Step 4: Simplify right side
    1,238,377.17x = 1,419,405,917,768.16
  5. Step 5: Solve for x
    x = 1,419,405,917,768.16/1,238,377.17
  6. Step 6: Final answer
    x = 1,146,182.24

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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.