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Finding the Fourth Proportional to 438,696.38, 605,401.21 and 237,492.38

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Solution

The fourth proportional to 438,696.38, 605,401.21 and 237,492.38 is: 327,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,696.38 : 605,401.21 = 237,492.38 : x
  2. Step 2: Convert to fraction form
    438,696.38/605,401.21 = 237,492.38/x
  3. Step 3: Cross multiply
    438,696.38x = 605,401.21 × 237,492.38
  4. Step 4: Simplify right side
    438,696.38x = 143,778,174,217.78
  5. Step 5: Solve for x
    x = 143,778,174,217.78/438,696.38
  6. Step 6: Final answer
    x = 327,739.60

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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.