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Finding the Fourth Proportional to 610,790.83, 842,796.29 and 349,142.40

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Solution

The fourth proportional to 610,790.83, 842,796.29 and 349,142.40 is: 481,762.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,790.83 : 842,796.29 = 349,142.40 : x
  2. Step 2: Convert to fraction form
    610,790.83/842,796.29 = 349,142.40/x
  3. Step 3: Cross multiply
    610,790.83x = 842,796.29 × 349,142.40
  4. Step 4: Simplify right side
    610,790.83x = 294,255,920,274.55
  5. Step 5: Solve for x
    x = 294,255,920,274.55/610,790.83
  6. Step 6: Final answer
    x = 481,762.18

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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.