Home / 3,178,403.76-4,386,283.32-1,728,196.56

Finding the Fourth Proportional to 3,178,403.76, 4,386,283.32 and 1,728,196.56

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Solution

The fourth proportional to 3,178,403.76, 4,386,283.32 and 1,728,196.56 is: 2,384,958.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,403.76 : 4,386,283.32 = 1,728,196.56 : x
  2. Step 2: Convert to fraction form
    3,178,403.76/4,386,283.32 = 1,728,196.56/x
  3. Step 3: Cross multiply
    3,178,403.76x = 4,386,283.32 × 1,728,196.56
  4. Step 4: Simplify right side
    3,178,403.76x = 7,580,359,744,809.38
  5. Step 5: Solve for x
    x = 7,580,359,744,809.38/3,178,403.76
  6. Step 6: Final answer
    x = 2,384,958.09

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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.