Home / 825,640.32-1,138,899.68-519,230.68

Finding the Fourth Proportional to 825,640.32, 1,138,899.68 and 519,230.68

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Solution

The fourth proportional to 825,640.32, 1,138,899.68 and 519,230.68 is: 716,233.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,640.32 : 1,138,899.68 = 519,230.68 : x
  2. Step 2: Convert to fraction form
    825,640.32/1,138,899.68 = 519,230.68/x
  3. Step 3: Cross multiply
    825,640.32x = 1,138,899.68 × 519,230.68
  4. Step 4: Simplify right side
    825,640.32x = 591,351,655,298.18
  5. Step 5: Solve for x
    x = 591,351,655,298.18/825,640.32
  6. Step 6: Final answer
    x = 716,233.98

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1.5x scale

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.