Home / 418,123.41-576,981.12-231,853.24

Finding the Fourth Proportional to 418,123.41, 576,981.12 and 231,853.24

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Solution

The fourth proportional to 418,123.41, 576,981.12 and 231,853.24 is: 319,941.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,123.41 : 576,981.12 = 231,853.24 : x
  2. Step 2: Convert to fraction form
    418,123.41/576,981.12 = 231,853.24/x
  3. Step 3: Cross multiply
    418,123.41x = 576,981.12 × 231,853.24
  4. Step 4: Simplify right side
    418,123.41x = 133,774,942,090.83
  5. Step 5: Solve for x
    x = 133,774,942,090.83/418,123.41
  6. Step 6: Final answer
    x = 319,941.29

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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.