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Finding the Fourth Proportional to 566,921.64, 782,352.96 and 308,797.80

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Solution

The fourth proportional to 566,921.64, 782,352.96 and 308,797.80 is: 426,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,921.64 : 782,352.96 = 308,797.80 : x
  2. Step 2: Convert to fraction form
    566,921.64/782,352.96 = 308,797.80/x
  3. Step 3: Cross multiply
    566,921.64x = 782,352.96 × 308,797.80
  4. Step 4: Simplify right side
    566,921.64x = 241,588,872,871.49
  5. Step 5: Solve for x
    x = 241,588,872,871.49/566,921.64
  6. Step 6: Final answer
    x = 426,141.56

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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.