Home / 1,681,414.80-2,320,386.12-917,500.56

Finding the Fourth Proportional to 1,681,414.80, 2,320,386.12 and 917,500.56

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Solution

The fourth proportional to 1,681,414.80, 2,320,386.12 and 917,500.56 is: 1,266,169.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,414.80 : 2,320,386.12 = 917,500.56 : x
  2. Step 2: Convert to fraction form
    1,681,414.80/2,320,386.12 = 917,500.56/x
  3. Step 3: Cross multiply
    1,681,414.80x = 2,320,386.12 × 917,500.56
  4. Step 4: Simplify right side
    1,681,414.80x = 2,128,955,564,516.23
  5. Step 5: Solve for x
    x = 2,128,955,564,516.23/1,681,414.80
  6. Step 6: Final answer
    x = 1,266,169.16

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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.