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Finding the Fourth Proportional to 700,005.03, 965,956.85 and 394,065.60

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Solution

The fourth proportional to 700,005.03, 965,956.85 and 394,065.60 is: 543,782.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,005.03 : 965,956.85 = 394,065.60 : x
  2. Step 2: Convert to fraction form
    700,005.03/965,956.85 = 394,065.60/x
  3. Step 3: Cross multiply
    700,005.03x = 965,956.85 × 394,065.60
  4. Step 4: Simplify right side
    700,005.03x = 380,650,363,699.03
  5. Step 5: Solve for x
    x = 380,650,363,699.03/700,005.03
  6. Step 6: Final answer
    x = 543,782.33

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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.