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Finding the Fourth Proportional to 560,789.25, 773,892.41 and 306,143.07

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Solution

The fourth proportional to 560,789.25, 773,892.41 and 306,143.07 is: 422,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,789.25 : 773,892.41 = 306,143.07 : x
  2. Step 2: Convert to fraction form
    560,789.25/773,892.41 = 306,143.07/x
  3. Step 3: Cross multiply
    560,789.25x = 773,892.41 × 306,143.07
  4. Step 4: Simplify right side
    560,789.25x = 236,921,798,247.10
  5. Step 5: Solve for x
    x = 236,921,798,247.10/560,789.25
  6. Step 6: Final answer
    x = 422,479.21

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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.