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Finding the Fourth Proportional to 674,418.40, 930,695.92 and 368,496.96

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Solution

The fourth proportional to 674,418.40, 930,695.92 and 368,496.96 is: 508,525.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,418.40 : 930,695.92 = 368,496.96 : x
  2. Step 2: Convert to fraction form
    674,418.40/930,695.92 = 368,496.96/x
  3. Step 3: Cross multiply
    674,418.40x = 930,695.92 × 368,496.96
  4. Step 4: Simplify right side
    674,418.40x = 342,958,617,204.40
  5. Step 5: Solve for x
    x = 342,958,617,204.40/674,418.40
  6. Step 6: Final answer
    x = 508,525.00

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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.