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Finding the Fourth Proportional to 674,485.56, 930,778.83 and 368,555.22

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Solution

The fourth proportional to 674,485.56, 930,778.83 and 368,555.22 is: 508,600.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,485.56 : 930,778.83 = 368,555.22 : x
  2. Step 2: Convert to fraction form
    674,485.56/930,778.83 = 368,555.22/x
  3. Step 3: Cross multiply
    674,485.56x = 930,778.83 × 368,555.22
  4. Step 4: Simplify right side
    674,485.56x = 343,043,396,461.99
  5. Step 5: Solve for x
    x = 343,043,396,461.99/674,485.56
  6. Step 6: Final answer
    x = 508,600.06

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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.