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Finding the Fourth Proportional to 921,630.30, 1,294,014.90 and 921,630.30

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Solution

The fourth proportional to 921,630.30, 1,294,014.90 and 921,630.30 is: 1,294,014.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,630.30 : 1,294,014.90 = 921,630.30 : x
  2. Step 2: Convert to fraction form
    921,630.30/1,294,014.90 = 921,630.30/x
  3. Step 3: Cross multiply
    921,630.30x = 1,294,014.90 × 921,630.30
  4. Step 4: Simplify right side
    921,630.30x = 1,192,603,340,491.47
  5. Step 5: Solve for x
    x = 1,192,603,340,491.47/921,630.30
  6. Step 6: Final answer
    x = 1,294,014.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.