Home / 2,187,143.64-3,280,715.46-691,119

Finding the Fourth Proportional to 2,187,143.64, 3,280,715.46 and 691,119

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Solution

The fourth proportional to 2,187,143.64, 3,280,715.46 and 691,119 is: 1,036,678.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,143.64 : 3,280,715.46 = 691,119 : x
  2. Step 2: Convert to fraction form
    2,187,143.64/3,280,715.46 = 691,119/x
  3. Step 3: Cross multiply
    2,187,143.64x = 3,280,715.46 × 691,119
  4. Step 4: Simplify right side
    2,187,143.64x = 2,267,364,787,999.74
  5. Step 5: Solve for x
    x = 2,267,364,787,999.74/2,187,143.64
  6. Step 6: Final answer
    x = 1,036,678.50

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.