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Finding the Fourth Proportional to 545,542.61, 753,193.44 and 402,052.73

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Solution

The fourth proportional to 545,542.61, 753,193.44 and 402,052.73 is: 555,086.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,542.61 : 753,193.44 = 402,052.73 : x
  2. Step 2: Convert to fraction form
    545,542.61/753,193.44 = 402,052.73/x
  3. Step 3: Cross multiply
    545,542.61x = 753,193.44 × 402,052.73
  4. Step 4: Simplify right side
    545,542.61x = 302,823,475,004.12
  5. Step 5: Solve for x
    x = 302,823,475,004.12/545,542.61
  6. Step 6: Final answer
    x = 555,086.76

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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.