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Finding the Fourth Proportional to 308,643.42, 426,073.54 and 232,191.69

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Solution

The fourth proportional to 308,643.42, 426,073.54 and 232,191.69 is: 320,534.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,643.42 : 426,073.54 = 232,191.69 : x
  2. Step 2: Convert to fraction form
    308,643.42/426,073.54 = 232,191.69/x
  3. Step 3: Cross multiply
    308,643.42x = 426,073.54 × 232,191.69
  4. Step 4: Simplify right side
    308,643.42x = 98,930,737,204.90
  5. Step 5: Solve for x
    x = 98,930,737,204.90/308,643.42
  6. Step 6: Final answer
    x = 320,534.09

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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.