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Finding the Fourth Proportional to 572,490.99, 790,100.22 and 327,498.24

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Solution

The fourth proportional to 572,490.99, 790,100.22 and 327,498.24 is: 451,983.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,490.99 : 790,100.22 = 327,498.24 : x
  2. Step 2: Convert to fraction form
    572,490.99/790,100.22 = 327,498.24/x
  3. Step 3: Cross multiply
    572,490.99x = 790,100.22 × 327,498.24
  4. Step 4: Simplify right side
    572,490.99x = 258,756,431,220.29
  5. Step 5: Solve for x
    x = 258,756,431,220.29/572,490.99
  6. Step 6: Final answer
    x = 451,983.41

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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.