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Finding the Fourth Proportional to 374,534.84, 516,863.24 and 221,569.10

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Solution

The fourth proportional to 374,534.84, 516,863.24 and 221,569.10 is: 305,768.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,534.84 : 516,863.24 = 221,569.10 : x
  2. Step 2: Convert to fraction form
    374,534.84/516,863.24 = 221,569.10/x
  3. Step 3: Cross multiply
    374,534.84x = 516,863.24 × 221,569.10
  4. Step 4: Simplify right side
    374,534.84x = 114,520,919,217.72
  5. Step 5: Solve for x
    x = 114,520,919,217.72/374,534.84
  6. Step 6: Final answer
    x = 305,768.41

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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.