Home / 386,279.50-533,066.89-214,209.58

Finding the Fourth Proportional to 386,279.50, 533,066.89 and 214,209.58

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Solution

The fourth proportional to 386,279.50, 533,066.89 and 214,209.58 is: 295,609.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,279.50 : 533,066.89 = 214,209.58 : x
  2. Step 2: Convert to fraction form
    386,279.50/533,066.89 = 214,209.58/x
  3. Step 3: Cross multiply
    386,279.50x = 533,066.89 × 214,209.58
  4. Step 4: Simplify right side
    386,279.50x = 114,188,031,953.47
  5. Step 5: Solve for x
    x = 114,188,031,953.47/386,279.50
  6. Step 6: Final answer
    x = 295,609.87

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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.