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Finding the Fourth Proportional to 560,863.75, 773,987.94 and 306,214.94

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Solution

The fourth proportional to 560,863.75, 773,987.94 and 306,214.94 is: 422,574.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,863.75 : 773,987.94 = 306,214.94 : x
  2. Step 2: Convert to fraction form
    560,863.75/773,987.94 = 306,214.94/x
  3. Step 3: Cross multiply
    560,863.75x = 773,987.94 × 306,214.94
  4. Step 4: Simplify right side
    560,863.75x = 237,006,670,607.82
  5. Step 5: Solve for x
    x = 237,006,670,607.82/560,863.75
  6. Step 6: Final answer
    x = 422,574.41

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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.