Home / 1,686,335.19-2,327,160.93-911,981.15

Finding the Fourth Proportional to 1,686,335.19, 2,327,160.93 and 911,981.15

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Solution

The fourth proportional to 1,686,335.19, 2,327,160.93 and 911,981.15 is: 1,258,543.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,335.19 : 2,327,160.93 = 911,981.15 : x
  2. Step 2: Convert to fraction form
    1,686,335.19/2,327,160.93 = 911,981.15/x
  3. Step 3: Cross multiply
    1,686,335.19x = 2,327,160.93 × 911,981.15
  4. Step 4: Simplify right side
    1,686,335.19x = 2,122,326,888,910.65
  5. Step 5: Solve for x
    x = 2,122,326,888,910.65/1,686,335.19
  6. Step 6: Final answer
    x = 1,258,543.92

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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.