Home / 319,719.36-441,212.76-176,479.43

Finding the Fourth Proportional to 319,719.36, 441,212.76 and 176,479.43

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Solution

The fourth proportional to 319,719.36, 441,212.76 and 176,479.43 is: 243,541.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,719.36 : 441,212.76 = 176,479.43 : x
  2. Step 2: Convert to fraction form
    319,719.36/441,212.76 = 176,479.43/x
  3. Step 3: Cross multiply
    319,719.36x = 441,212.76 × 176,479.43
  4. Step 4: Simplify right side
    319,719.36x = 77,864,976,393.53
  5. Step 5: Solve for x
    x = 77,864,976,393.53/319,719.36
  6. Step 6: Final answer
    x = 243,541.64

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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.