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Finding the Fourth Proportional to 488,081.30, 733,245.82 and 346,278.65

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Solution

The fourth proportional to 488,081.30, 733,245.82 and 346,278.65 is: 520,215.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,081.30 : 733,245.82 = 346,278.65 : x
  2. Step 2: Convert to fraction form
    488,081.30/733,245.82 = 346,278.65/x
  3. Step 3: Cross multiply
    488,081.30x = 733,245.82 × 346,278.65
  4. Step 4: Simplify right side
    488,081.30x = 253,907,368,135.82
  5. Step 5: Solve for x
    x = 253,907,368,135.82/488,081.30
  6. Step 6: Final answer
    x = 520,215.32

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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.