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Finding the Fourth Proportional to 416,600.20, 623,320.80 and 276,632.20

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Solution

The fourth proportional to 416,600.20, 623,320.80 and 276,632.20 is: 413,899.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,600.20 : 623,320.80 = 276,632.20 : x
  2. Step 2: Convert to fraction form
    416,600.20/623,320.80 = 276,632.20/x
  3. Step 3: Cross multiply
    416,600.20x = 623,320.80 × 276,632.20
  4. Step 4: Simplify right side
    416,600.20x = 172,430,604,209.76
  5. Step 5: Solve for x
    x = 172,430,604,209.76/416,600.20
  6. Step 6: Final answer
    x = 413,899.48

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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.