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Finding the Fourth Proportional to 318,458.88, 439,483.84 and 175,229.44

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Solution

The fourth proportional to 318,458.88, 439,483.84 and 175,229.44 is: 241,822.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,458.88 : 439,483.84 = 175,229.44 : x
  2. Step 2: Convert to fraction form
    318,458.88/439,483.84 = 175,229.44/x
  3. Step 3: Cross multiply
    318,458.88x = 439,483.84 × 175,229.44
  4. Step 4: Simplify right side
    318,458.88x = 77,010,507,172.25
  5. Step 5: Solve for x
    x = 77,010,507,172.25/318,458.88
  6. Step 6: Final answer
    x = 241,822.45

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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.