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Finding the Fourth Proportional to 560,520.05, 773,534.00 and 305,887.64

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Solution

The fourth proportional to 560,520.05, 773,534.00 and 305,887.64 is: 422,133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,520.05 : 773,534.00 = 305,887.64 : x
  2. Step 2: Convert to fraction form
    560,520.05/773,534.00 = 305,887.64/x
  3. Step 3: Cross multiply
    560,520.05x = 773,534.00 × 305,887.64
  4. Step 4: Simplify right side
    560,520.05x = 236,614,486,616.81
  5. Step 5: Solve for x
    x = 236,614,486,616.81/560,520.05
  6. Step 6: Final answer
    x = 422,133.85

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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.