Home / 319,719.60-441,213.12-176,479.72

Finding the Fourth Proportional to 319,719.60, 441,213.12 and 176,479.72

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Solution

The fourth proportional to 319,719.60, 441,213.12 and 176,479.72 is: 243,542.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,719.60 : 441,213.12 = 176,479.72 : x
  2. Step 2: Convert to fraction form
    319,719.60/441,213.12 = 176,479.72/x
  3. Step 3: Cross multiply
    319,719.60x = 441,213.12 × 176,479.72
  4. Step 4: Simplify right side
    319,719.60x = 77,865,167,877.93
  5. Step 5: Solve for x
    x = 77,865,167,877.93/319,719.60
  6. Step 6: Final answer
    x = 243,542.05

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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.