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Finding the Fourth Proportional to 378,031.80, 567,047.70 and 238,063.80

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Solution

The fourth proportional to 378,031.80, 567,047.70 and 238,063.80 is: 357,095.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,031.80 : 567,047.70 = 238,063.80 : x
  2. Step 2: Convert to fraction form
    378,031.80/567,047.70 = 238,063.80/x
  3. Step 3: Cross multiply
    378,031.80x = 567,047.70 × 238,063.80
  4. Step 4: Simplify right side
    378,031.80x = 134,993,530,243.26
  5. Step 5: Solve for x
    x = 134,993,530,243.26/378,031.80
  6. Step 6: Final answer
    x = 357,095.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.