Home / 1,290,260.10-1,933,640.55-862,580.10

Finding the Fourth Proportional to 1,290,260.10, 1,933,640.55 and 862,580.10

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Solution

The fourth proportional to 1,290,260.10, 1,933,640.55 and 862,580.10 is: 1,292,700.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,260.10 : 1,933,640.55 = 862,580.10 : x
  2. Step 2: Convert to fraction form
    1,290,260.10/1,933,640.55 = 862,580.10/x
  3. Step 3: Cross multiply
    1,290,260.10x = 1,933,640.55 × 862,580.10
  4. Step 4: Simplify right side
    1,290,260.10x = 1,667,919,858,983.06
  5. Step 5: Solve for x
    x = 1,667,919,858,983.06/1,290,260.10
  6. Step 6: Final answer
    x = 1,292,700.49

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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.