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Finding the Fourth Proportional to 624,910.95, 862,370.96 and 352,978.16

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Solution

The fourth proportional to 624,910.95, 862,370.96 and 352,978.16 is: 487,106.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,910.95 : 862,370.96 = 352,978.16 : x
  2. Step 2: Convert to fraction form
    624,910.95/862,370.96 = 352,978.16/x
  3. Step 3: Cross multiply
    624,910.95x = 862,370.96 × 352,978.16
  4. Step 4: Simplify right side
    624,910.95x = 304,398,108,621.49
  5. Step 5: Solve for x
    x = 304,398,108,621.49/624,910.95
  6. Step 6: Final answer
    x = 487,106.38

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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.