Home / 386,868.12-533,901.70-217,102.26

Finding the Fourth Proportional to 386,868.12, 533,901.70 and 217,102.26

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Solution

The fourth proportional to 386,868.12, 533,901.70 and 217,102.26 is: 299,614.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,868.12 : 533,901.70 = 217,102.26 : x
  2. Step 2: Convert to fraction form
    386,868.12/533,901.70 = 217,102.26/x
  3. Step 3: Cross multiply
    386,868.12x = 533,901.70 × 217,102.26
  4. Step 4: Simplify right side
    386,868.12x = 115,911,265,687.84
  5. Step 5: Solve for x
    x = 115,911,265,687.84/386,868.12
  6. Step 6: Final answer
    x = 299,614.42

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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.