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Finding the Fourth Proportional to 319,083.68, 440,335.58 and 173,889.52

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Solution

The fourth proportional to 319,083.68, 440,335.58 and 173,889.52 is: 239,967.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,083.68 : 440,335.58 = 173,889.52 : x
  2. Step 2: Convert to fraction form
    319,083.68/440,335.58 = 173,889.52/x
  3. Step 3: Cross multiply
    319,083.68x = 440,335.58 × 173,889.52
  4. Step 4: Simplify right side
    319,083.68x = 76,569,740,674.84
  5. Step 5: Solve for x
    x = 76,569,740,674.84/319,083.68
  6. Step 6: Final answer
    x = 239,967.58

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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.