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Finding the Fourth Proportional to 475,710.78, 656,481.06 and 260,846.40

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Solution

The fourth proportional to 475,710.78, 656,481.06 and 260,846.40 is: 359,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,710.78 : 656,481.06 = 260,846.40 : x
  2. Step 2: Convert to fraction form
    475,710.78/656,481.06 = 260,846.40/x
  3. Step 3: Cross multiply
    475,710.78x = 656,481.06 × 260,846.40
  4. Step 4: Simplify right side
    475,710.78x = 171,240,721,169.18
  5. Step 5: Solve for x
    x = 171,240,721,169.18/475,710.78
  6. Step 6: Final answer
    x = 359,968.13

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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.