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Finding the Fourth Proportional to 451,644.22, 623,224.11 and 260,719.12

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Solution

The fourth proportional to 451,644.22, 623,224.11 and 260,719.12 is: 359,766.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,644.22 : 623,224.11 = 260,719.12 : x
  2. Step 2: Convert to fraction form
    451,644.22/623,224.11 = 260,719.12/x
  3. Step 3: Cross multiply
    451,644.22x = 623,224.11 × 260,719.12
  4. Step 4: Simplify right side
    451,644.22x = 162,486,441,521.98
  5. Step 5: Solve for x
    x = 162,486,441,521.98/451,644.22
  6. Step 6: Final answer
    x = 359,766.46

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Half scale
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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.