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Finding the Fourth Proportional to 416,618.70, 623,348.55 and 276,650.70

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Solution

The fourth proportional to 416,618.70, 623,348.55 and 276,650.70 is: 413,927.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,618.70 : 623,348.55 = 276,650.70 : x
  2. Step 2: Convert to fraction form
    416,618.70/623,348.55 = 276,650.70/x
  3. Step 3: Cross multiply
    416,618.70x = 623,348.55 × 276,650.70
  4. Step 4: Simplify right side
    416,618.70x = 172,449,812,701.49
  5. Step 5: Solve for x
    x = 172,449,812,701.49/416,618.70
  6. Step 6: Final answer
    x = 413,927.20

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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.