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Finding the Fourth Proportional to 700,756.72, 967,044.20 and 378,466.88

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Solution

The fourth proportional to 700,756.72, 967,044.20 and 378,466.88 is: 522,284.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,756.72 : 967,044.20 = 378,466.88 : x
  2. Step 2: Convert to fraction form
    700,756.72/967,044.20 = 378,466.88/x
  3. Step 3: Cross multiply
    700,756.72x = 967,044.20 × 378,466.88
  4. Step 4: Simplify right side
    700,756.72x = 365,994,201,196.10
  5. Step 5: Solve for x
    x = 365,994,201,196.10/700,756.72
  6. Step 6: Final answer
    x = 522,284.25

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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.