Home / 1,280,034.27-1,920,050.79-381,453.08

Finding the Fourth Proportional to 1,280,034.27, 1,920,050.79 and 381,453.08

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Solution

The fourth proportional to 1,280,034.27, 1,920,050.79 and 381,453.08 is: 572,179.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,034.27 : 1,920,050.79 = 381,453.08 : x
  2. Step 2: Convert to fraction form
    1,280,034.27/1,920,050.79 = 381,453.08/x
  3. Step 3: Cross multiply
    1,280,034.27x = 1,920,050.79 × 381,453.08
  4. Step 4: Simplify right side
    1,280,034.27x = 732,409,278,001.68
  5. Step 5: Solve for x
    x = 732,409,278,001.68/1,280,034.27
  6. Step 6: Final answer
    x = 572,179.43

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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.