Home / 3,178,625.16-4,386,557.55-1,728,330.39

Finding the Fourth Proportional to 3,178,625.16, 4,386,557.55 and 1,728,330.39

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Solution

The fourth proportional to 3,178,625.16, 4,386,557.55 and 1,728,330.39 is: 2,385,125.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,625.16 : 4,386,557.55 = 1,728,330.39 : x
  2. Step 2: Convert to fraction form
    3,178,625.16/4,386,557.55 = 1,728,330.39/x
  3. Step 3: Cross multiply
    3,178,625.16x = 4,386,557.55 × 1,728,330.39
  4. Step 4: Simplify right side
    3,178,625.16x = 7,581,420,721,148.94
  5. Step 5: Solve for x
    x = 7,581,420,721,148.94/3,178,625.16
  6. Step 6: Final answer
    x = 2,385,125.75

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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.