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Finding the Fourth Proportional to 518,028.64, 777,181.24 and 185,638.24

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Solution

The fourth proportional to 518,028.64, 777,181.24 and 185,638.24 is: 278,506.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,028.64 : 777,181.24 = 185,638.24 : x
  2. Step 2: Convert to fraction form
    518,028.64/777,181.24 = 185,638.24/x
  3. Step 3: Cross multiply
    518,028.64x = 777,181.24 × 185,638.24
  4. Step 4: Simplify right side
    518,028.64x = 144,274,557,554.62
  5. Step 5: Solve for x
    x = 144,274,557,554.62/518,028.64
  6. Step 6: Final answer
    x = 278,506.91

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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.