Home / 627,018.48-864,785.16-412,378.92

Finding the Fourth Proportional to 627,018.48, 864,785.16 and 412,378.92

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Solution

The fourth proportional to 627,018.48, 864,785.16 and 412,378.92 is: 568,753.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,018.48 : 864,785.16 = 412,378.92 : x
  2. Step 2: Convert to fraction form
    627,018.48/864,785.16 = 412,378.92/x
  3. Step 3: Cross multiply
    627,018.48x = 864,785.16 × 412,378.92
  4. Step 4: Simplify right side
    627,018.48x = 356,619,170,312.83
  5. Step 5: Solve for x
    x = 356,619,170,312.83/627,018.48
  6. Step 6: Final answer
    x = 568,753.84

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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.