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Finding the Fourth Proportional to 552,328.34, 762,205.86 and 310,610.84

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Solution

The fourth proportional to 552,328.34, 762,205.86 and 310,610.84 is: 428,638.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,328.34 : 762,205.86 = 310,610.84 : x
  2. Step 2: Convert to fraction form
    552,328.34/762,205.86 = 310,610.84/x
  3. Step 3: Cross multiply
    552,328.34x = 762,205.86 × 310,610.84
  4. Step 4: Simplify right side
    552,328.34x = 236,749,398,616.49
  5. Step 5: Solve for x
    x = 236,749,398,616.49/552,328.34
  6. Step 6: Final answer
    x = 428,638.88

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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.