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Finding the Fourth Proportional to 547,748.72, 822,299.67 and 259,835.63

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Solution

The fourth proportional to 547,748.72, 822,299.67 and 259,835.63 is: 390,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,748.72 : 822,299.67 = 259,835.63 : x
  2. Step 2: Convert to fraction form
    547,748.72/822,299.67 = 259,835.63/x
  3. Step 3: Cross multiply
    547,748.72x = 822,299.67 × 259,835.63
  4. Step 4: Simplify right side
    547,748.72x = 213,662,748,691.74
  5. Step 5: Solve for x
    x = 213,662,748,691.74/547,748.72
  6. Step 6: Final answer
    x = 390,074.40

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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.