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Finding the Fourth Proportional to 372,667.84, 514,273.54 and 217,645.80

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Solution

The fourth proportional to 372,667.84, 514,273.54 and 217,645.80 is: 300,346.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,667.84 : 514,273.54 = 217,645.80 : x
  2. Step 2: Convert to fraction form
    372,667.84/514,273.54 = 217,645.80/x
  3. Step 3: Cross multiply
    372,667.84x = 514,273.54 × 217,645.80
  4. Step 4: Simplify right side
    372,667.84x = 111,929,476,032.13
  5. Step 5: Solve for x
    x = 111,929,476,032.13/372,667.84
  6. Step 6: Final answer
    x = 300,346.49

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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.