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Finding the Fourth Proportional to 281,600.65, 423,599.64 and 255,264.22

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Solution

The fourth proportional to 281,600.65, 423,599.64 and 255,264.22 is: 383,982.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,600.65 : 423,599.64 = 255,264.22 : x
  2. Step 2: Convert to fraction form
    281,600.65/423,599.64 = 255,264.22/x
  3. Step 3: Cross multiply
    281,600.65x = 423,599.64 × 255,264.22
  4. Step 4: Simplify right side
    281,600.65x = 108,129,831,696.88
  5. Step 5: Solve for x
    x = 108,129,831,696.88/281,600.65
  6. Step 6: Final answer
    x = 383,982.89

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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.