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Finding the Fourth Proportional to 475,367.86, 656,012.81 and 260,503.31

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Solution

The fourth proportional to 475,367.86, 656,012.81 and 260,503.31 is: 359,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,367.86 : 656,012.81 = 260,503.31 : x
  2. Step 2: Convert to fraction form
    475,367.86/656,012.81 = 260,503.31/x
  3. Step 3: Cross multiply
    475,367.86x = 656,012.81 × 260,503.31
  4. Step 4: Simplify right side
    475,367.86x = 170,893,510,698.69
  5. Step 5: Solve for x
    x = 170,893,510,698.69/475,367.86
  6. Step 6: Final answer
    x = 359,497.40

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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.