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Finding the Fourth Proportional to 855,562.60, 1,285,244.70 and 715,594.60

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Solution

The fourth proportional to 855,562.60, 1,285,244.70 and 715,594.60 is: 1,074,981.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,562.60 : 1,285,244.70 = 715,594.60 : x
  2. Step 2: Convert to fraction form
    855,562.60/1,285,244.70 = 715,594.60/x
  3. Step 3: Cross multiply
    855,562.60x = 1,285,244.70 × 715,594.60
  4. Step 4: Simplify right side
    855,562.60x = 919,714,166,998.62
  5. Step 5: Solve for x
    x = 919,714,166,998.62/855,562.60
  6. Step 6: Final answer
    x = 1,074,981.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.