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Finding the Fourth Proportional to 431,924.48, 596,059.66 and 238,340.80

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Solution

The fourth proportional to 431,924.48, 596,059.66 and 238,340.80 is: 328,912.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,924.48 : 596,059.66 = 238,340.80 : x
  2. Step 2: Convert to fraction form
    431,924.48/596,059.66 = 238,340.80/x
  3. Step 3: Cross multiply
    431,924.48x = 596,059.66 × 238,340.80
  4. Step 4: Simplify right side
    431,924.48x = 142,065,336,212.13
  5. Step 5: Solve for x
    x = 142,065,336,212.13/431,924.48
  6. Step 6: Final answer
    x = 328,912.44

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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.