Home / 2,312,623.80-3,191,382.18-1,280,109.42

Finding the Fourth Proportional to 2,312,623.80, 3,191,382.18 and 1,280,109.42

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Solution

The fourth proportional to 2,312,623.80, 3,191,382.18 and 1,280,109.42 is: 1,766,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312,623.80 : 3,191,382.18 = 1,280,109.42 : x
  2. Step 2: Convert to fraction form
    2,312,623.80/3,191,382.18 = 1,280,109.42/x
  3. Step 3: Cross multiply
    2,312,623.80x = 3,191,382.18 × 1,280,109.42
  4. Step 4: Simplify right side
    2,312,623.80x = 4,085,318,391,438.14
  5. Step 5: Solve for x
    x = 4,085,318,391,438.14/2,312,623.80
  6. Step 6: Final answer
    x = 1,766,529.60

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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.