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Finding the Fourth Proportional to 419,794.47, 579,331.98 and 238,537.13

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Solution

The fourth proportional to 419,794.47, 579,331.98 and 238,537.13 is: 329,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,794.47 : 579,331.98 = 238,537.13 : x
  2. Step 2: Convert to fraction form
    419,794.47/579,331.98 = 238,537.13/x
  3. Step 3: Cross multiply
    419,794.47x = 579,331.98 × 238,537.13
  4. Step 4: Simplify right side
    419,794.47x = 138,192,184,929.76
  5. Step 5: Solve for x
    x = 138,192,184,929.76/419,794.47
  6. Step 6: Final answer
    x = 329,190.10

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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.