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Finding the Fourth Proportional to 475,463.21, 656,137.86 and 260,602.61

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Solution

The fourth proportional to 475,463.21, 656,137.86 and 260,602.61 is: 359,630.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,463.21 : 656,137.86 = 260,602.61 : x
  2. Step 2: Convert to fraction form
    475,463.21/656,137.86 = 260,602.61/x
  3. Step 3: Cross multiply
    475,463.21x = 656,137.86 × 260,602.61
  4. Step 4: Simplify right side
    475,463.21x = 170,991,237,762.64
  5. Step 5: Solve for x
    x = 170,991,237,762.64/475,463.21
  6. Step 6: Final answer
    x = 359,630.85

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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.