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Finding the Fourth Proportional to 624,941.16, 862,471.86 and 353,058.90

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Solution

The fourth proportional to 624,941.16, 862,471.86 and 353,058.90 is: 487,251.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,941.16 : 862,471.86 = 353,058.90 : x
  2. Step 2: Convert to fraction form
    624,941.16/862,471.86 = 353,058.90/x
  3. Step 3: Cross multiply
    624,941.16x = 862,471.86 × 353,058.90
  4. Step 4: Simplify right side
    624,941.16x = 304,503,366,172.55
  5. Step 5: Solve for x
    x = 304,503,366,172.55/624,941.16
  6. Step 6: Final answer
    x = 487,251.26

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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.