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Finding the Fourth Proportional to 548,847.95, 757,301.42 and 307,083.60

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Solution

The fourth proportional to 548,847.95, 757,301.42 and 307,083.60 is: 423,714.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,847.95 : 757,301.42 = 307,083.60 : x
  2. Step 2: Convert to fraction form
    548,847.95/757,301.42 = 307,083.60/x
  3. Step 3: Cross multiply
    548,847.95x = 757,301.42 × 307,083.60
  4. Step 4: Simplify right side
    548,847.95x = 232,554,844,803.29
  5. Step 5: Solve for x
    x = 232,554,844,803.29/548,847.95
  6. Step 6: Final answer
    x = 423,714.52

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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.