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Finding the Fourth Proportional to 807,889.41, 1,114,894.80 and 445,327.20

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Solution

The fourth proportional to 807,889.41, 1,114,894.80 and 445,327.20 is: 614,555.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,889.41 : 1,114,894.80 = 445,327.20 : x
  2. Step 2: Convert to fraction form
    807,889.41/1,114,894.80 = 445,327.20/x
  3. Step 3: Cross multiply
    807,889.41x = 1,114,894.80 × 445,327.20
  4. Step 4: Simplify right side
    807,889.41x = 496,492,979,578.56
  5. Step 5: Solve for x
    x = 496,492,979,578.56/807,889.41
  6. Step 6: Final answer
    x = 614,555.62

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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.