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Finding the Fourth Proportional to 611,775.11, 844,255.42 and 336,138.74

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Solution

The fourth proportional to 611,775.11, 844,255.42 and 336,138.74 is: 463,874.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,775.11 : 844,255.42 = 336,138.74 : x
  2. Step 2: Convert to fraction form
    611,775.11/844,255.42 = 336,138.74/x
  3. Step 3: Cross multiply
    611,775.11x = 844,255.42 × 336,138.74
  4. Step 4: Simplify right side
    611,775.11x = 283,786,956,915.63
  5. Step 5: Solve for x
    x = 283,786,956,915.63/611,775.11
  6. Step 6: Final answer
    x = 463,874.64

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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.