Home / 1,686,057.72-2,326,758.02-911,686.71

Finding the Fourth Proportional to 1,686,057.72, 2,326,758.02 and 911,686.71

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Solution

The fourth proportional to 1,686,057.72, 2,326,758.02 and 911,686.71 is: 1,258,126.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,057.72 : 2,326,758.02 = 911,686.71 : x
  2. Step 2: Convert to fraction form
    1,686,057.72/2,326,758.02 = 911,686.71/x
  3. Step 3: Cross multiply
    1,686,057.72x = 2,326,758.02 × 911,686.71
  4. Step 4: Simplify right side
    1,686,057.72x = 2,121,274,359,425.52
  5. Step 5: Solve for x
    x = 2,121,274,359,425.52/1,686,057.72
  6. Step 6: Final answer
    x = 1,258,126.77

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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.