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Finding the Fourth Proportional to 552,518.70, 828,000.45 and 409,245.90

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Solution

The fourth proportional to 552,518.70, 828,000.45 and 409,245.90 is: 613,292.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,518.70 : 828,000.45 = 409,245.90 : x
  2. Step 2: Convert to fraction form
    552,518.70/828,000.45 = 409,245.90/x
  3. Step 3: Cross multiply
    552,518.70x = 828,000.45 × 409,245.90
  4. Step 4: Simplify right side
    552,518.70x = 338,855,789,360.66
  5. Step 5: Solve for x
    x = 338,855,789,360.66/552,518.70
  6. Step 6: Final answer
    x = 613,292.89

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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.