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Finding the Fourth Proportional to 431,940.96, 596,074.45 and 238,350.45

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Solution

The fourth proportional to 431,940.96, 596,074.45 and 238,350.45 is: 328,921.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,940.96 : 596,074.45 = 238,350.45 : x
  2. Step 2: Convert to fraction form
    431,940.96/596,074.45 = 238,350.45/x
  3. Step 3: Cross multiply
    431,940.96x = 596,074.45 × 238,350.45
  4. Step 4: Simplify right side
    431,940.96x = 142,074,613,391.00
  5. Step 5: Solve for x
    x = 142,074,613,391.00/431,940.96
  6. Step 6: Final answer
    x = 328,921.37

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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.