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Finding the Fourth Proportional to 382,712.36, 528,142.56 and 237,464.12

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Solution

The fourth proportional to 382,712.36, 528,142.56 and 237,464.12 is: 327,700.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,712.36 : 528,142.56 = 237,464.12 : x
  2. Step 2: Convert to fraction form
    382,712.36/528,142.56 = 237,464.12/x
  3. Step 3: Cross multiply
    382,712.36x = 528,142.56 × 237,464.12
  4. Step 4: Simplify right side
    382,712.36x = 125,414,907,281.55
  5. Step 5: Solve for x
    x = 125,414,907,281.55/382,712.36
  6. Step 6: Final answer
    x = 327,700.18

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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.