Home / 386,628.39-533,546.46-214,572.78

Finding the Fourth Proportional to 386,628.39, 533,546.46 and 214,572.78

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Solution

The fourth proportional to 386,628.39, 533,546.46 and 214,572.78 is: 296,110.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,628.39 : 533,546.46 = 214,572.78 : x
  2. Step 2: Convert to fraction form
    386,628.39/533,546.46 = 214,572.78/x
  3. Step 3: Cross multiply
    386,628.39x = 533,546.46 × 214,572.78
  4. Step 4: Simplify right side
    386,628.39x = 114,484,547,181.36
  5. Step 5: Solve for x
    x = 114,484,547,181.36/386,628.39
  6. Step 6: Final answer
    x = 296,110.04

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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.