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Finding the Fourth Proportional to 382,356.83, 527,678.19 and 253,072.58

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Solution

The fourth proportional to 382,356.83, 527,678.19 and 253,072.58 is: 349,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,356.83 : 527,678.19 = 253,072.58 : x
  2. Step 2: Convert to fraction form
    382,356.83/527,678.19 = 253,072.58/x
  3. Step 3: Cross multiply
    382,356.83x = 527,678.19 × 253,072.58
  4. Step 4: Simplify right side
    382,356.83x = 133,540,878,314.64
  5. Step 5: Solve for x
    x = 133,540,878,314.64/382,356.83
  6. Step 6: Final answer
    x = 349,257.20

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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.