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Finding the Fourth Proportional to 367,506.72, 551,726.64 and 312,452.64

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Solution

The fourth proportional to 367,506.72, 551,726.64 and 312,452.64 is: 469,075.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,506.72 : 551,726.64 = 312,452.64 : x
  2. Step 2: Convert to fraction form
    367,506.72/551,726.64 = 312,452.64/x
  3. Step 3: Cross multiply
    367,506.72x = 551,726.64 × 312,452.64
  4. Step 4: Simplify right side
    367,506.72x = 172,388,445,226.33
  5. Step 5: Solve for x
    x = 172,388,445,226.33/367,506.72
  6. Step 6: Final answer
    x = 469,075.63

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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.