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Finding the Fourth Proportional to 385,878.14, 532,219.08 and 338,048.48

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Solution

The fourth proportional to 385,878.14, 532,219.08 and 338,048.48 is: 466,250.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,878.14 : 532,219.08 = 338,048.48 : x
  2. Step 2: Convert to fraction form
    385,878.14/532,219.08 = 338,048.48/x
  3. Step 3: Cross multiply
    385,878.14x = 532,219.08 × 338,048.48
  4. Step 4: Simplify right side
    385,878.14x = 179,915,851,021.00
  5. Step 5: Solve for x
    x = 179,915,851,021.00/385,878.14
  6. Step 6: Final answer
    x = 466,250.44

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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.