Home / 3,178,565.31-4,386,299.20-1,728,261.93

Finding the Fourth Proportional to 3,178,565.31, 4,386,299.20 and 1,728,261.93

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Solution

The fourth proportional to 3,178,565.31, 4,386,299.20 and 1,728,261.93 is: 2,384,935.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,565.31 : 4,386,299.20 = 1,728,261.93 : x
  2. Step 2: Convert to fraction form
    3,178,565.31/4,386,299.20 = 1,728,261.93/x
  3. Step 3: Cross multiply
    3,178,565.31x = 4,386,299.20 × 1,728,261.93
  4. Step 4: Simplify right side
    3,178,565.31x = 7,580,673,920,949.46
  5. Step 5: Solve for x
    x = 7,580,673,920,949.46/3,178,565.31
  6. Step 6: Final answer
    x = 2,384,935.71

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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.