Home / 1,386,309.76-1,912,309.26-834,641.92

Finding the Fourth Proportional to 1,386,309.76, 1,912,309.26 and 834,641.92

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Solution

The fourth proportional to 1,386,309.76, 1,912,309.26 and 834,641.92 is: 1,151,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,309.76 : 1,912,309.26 = 834,641.92 : x
  2. Step 2: Convert to fraction form
    1,386,309.76/1,912,309.26 = 834,641.92/x
  3. Step 3: Cross multiply
    1,386,309.76x = 1,912,309.26 × 834,641.92
  4. Step 4: Simplify right side
    1,386,309.76x = 1,596,093,472,400.18
  5. Step 5: Solve for x
    x = 1,596,093,472,400.18/1,386,309.76
  6. Step 6: Final answer
    x = 1,151,325.28

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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.