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Finding the Fourth Proportional to 475,778.25, 656,513.64 and 260,861.76

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Solution

The fourth proportional to 475,778.25, 656,513.64 and 260,861.76 is: 359,956.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,778.25 : 656,513.64 = 260,861.76 : x
  2. Step 2: Convert to fraction form
    475,778.25/656,513.64 = 260,861.76/x
  3. Step 3: Cross multiply
    475,778.25x = 656,513.64 × 260,861.76
  4. Step 4: Simplify right side
    475,778.25x = 171,259,303,594.41
  5. Step 5: Solve for x
    x = 171,259,303,594.41/475,778.25
  6. Step 6: Final answer
    x = 359,956.14

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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.