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Finding the Fourth Proportional to 351,640.20, 527,460.30 and 185,752.20

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Solution

The fourth proportional to 351,640.20, 527,460.30 and 185,752.20 is: 278,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,640.20 : 527,460.30 = 185,752.20 : x
  2. Step 2: Convert to fraction form
    351,640.20/527,460.30 = 185,752.20/x
  3. Step 3: Cross multiply
    351,640.20x = 527,460.30 × 185,752.20
  4. Step 4: Simplify right side
    351,640.20x = 97,976,911,137.66
  5. Step 5: Solve for x
    x = 97,976,911,137.66/351,640.20
  6. Step 6: Final answer
    x = 278,628.30

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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.