Home / 3,178,620.65-4,386,551.33-1,728,325.89

Finding the Fourth Proportional to 3,178,620.65, 4,386,551.33 and 1,728,325.89

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Solution

The fourth proportional to 3,178,620.65, 4,386,551.33 and 1,728,325.89 is: 2,385,119.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,620.65 : 4,386,551.33 = 1,728,325.89 : x
  2. Step 2: Convert to fraction form
    3,178,620.65/4,386,551.33 = 1,728,325.89/x
  3. Step 3: Cross multiply
    3,178,620.65x = 4,386,551.33 × 1,728,325.89
  4. Step 4: Simplify right side
    3,178,620.65x = 7,581,390,235,773.75
  5. Step 5: Solve for x
    x = 7,581,390,235,773.75/3,178,620.65
  6. Step 6: Final answer
    x = 2,385,119.54

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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.