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Finding the Fourth Proportional to 438,973.88, 605,783.97 and 237,769.88

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Solution

The fourth proportional to 438,973.88, 605,783.97 and 237,769.88 is: 328,122.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,973.88 : 605,783.97 = 237,769.88 : x
  2. Step 2: Convert to fraction form
    438,973.88/605,783.97 = 237,769.88/x
  3. Step 3: Cross multiply
    438,973.88x = 605,783.97 × 237,769.88
  4. Step 4: Simplify right side
    438,973.88x = 144,037,178,823.90
  5. Step 5: Solve for x
    x = 144,037,178,823.90/438,973.88
  6. Step 6: Final answer
    x = 328,122.44

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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.