Home / 387,101.76-534,186.66-217,343.04

Finding the Fourth Proportional to 387,101.76, 534,186.66 and 217,343.04

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Solution

The fourth proportional to 387,101.76, 534,186.66 and 217,343.04 is: 299,925.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,101.76 : 534,186.66 = 217,343.04 : x
  2. Step 2: Convert to fraction form
    387,101.76/534,186.66 = 217,343.04/x
  3. Step 3: Cross multiply
    387,101.76x = 534,186.66 × 217,343.04
  4. Step 4: Simplify right side
    387,101.76x = 116,101,752,611.85
  5. Step 5: Solve for x
    x = 116,101,752,611.85/387,101.76
  6. Step 6: Final answer
    x = 299,925.66

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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.