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Finding the Fourth Proportional to 548,344.08, 755,032.59 and 479,978.46

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Solution

The fourth proportional to 548,344.08, 755,032.59 and 479,978.46 is: 660,897.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,344.08 : 755,032.59 = 479,978.46 : x
  2. Step 2: Convert to fraction form
    548,344.08/755,032.59 = 479,978.46/x
  3. Step 3: Cross multiply
    548,344.08x = 755,032.59 × 479,978.46
  4. Step 4: Simplify right side
    548,344.08x = 362,399,379,798.01
  5. Step 5: Solve for x
    x = 362,399,379,798.01/548,344.08
  6. Step 6: Final answer
    x = 660,897.77

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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.