Home / 386,439.12-533,235.24-214,355.16

Finding the Fourth Proportional to 386,439.12, 533,235.24 and 214,355.16

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Solution

The fourth proportional to 386,439.12, 533,235.24 and 214,355.16 is: 295,781.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,439.12 : 533,235.24 = 214,355.16 : x
  2. Step 2: Convert to fraction form
    386,439.12/533,235.24 = 214,355.16/x
  3. Step 3: Cross multiply
    386,439.12x = 533,235.24 × 214,355.16
  4. Step 4: Simplify right side
    386,439.12x = 114,301,725,187.84
  5. Step 5: Solve for x
    x = 114,301,725,187.84/386,439.12
  6. Step 6: Final answer
    x = 295,781.97

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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.