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Finding the Fourth Proportional to 706,823.30, 987,453.10 and 706,823.30

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Solution

The fourth proportional to 706,823.30, 987,453.10 and 706,823.30 is: 987,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,823.30 : 987,453.10 = 706,823.30 : x
  2. Step 2: Convert to fraction form
    706,823.30/987,453.10 = 706,823.30/x
  3. Step 3: Cross multiply
    706,823.30x = 987,453.10 × 706,823.30
  4. Step 4: Simplify right side
    706,823.30x = 697,954,858,737.23
  5. Step 5: Solve for x
    x = 697,954,858,737.23/706,823.30
  6. Step 6: Final answer
    x = 987,453.10

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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.