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Finding the Fourth Proportional to 705,148.70, 973,906.40 and 475,309.58

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Solution

The fourth proportional to 705,148.70, 973,906.40 and 475,309.58 is: 656,467.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,148.70 : 973,906.40 = 475,309.58 : x
  2. Step 2: Convert to fraction form
    705,148.70/973,906.40 = 475,309.58/x
  3. Step 3: Cross multiply
    705,148.70x = 973,906.40 × 475,309.58
  4. Step 4: Simplify right side
    705,148.70x = 462,907,038,262.05
  5. Step 5: Solve for x
    x = 462,907,038,262.05/705,148.70
  6. Step 6: Final answer
    x = 656,467.27

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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.