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Finding the Fourth Proportional to 827,171.90, 1,159,615.30 and 827,171.90

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Solution

The fourth proportional to 827,171.90, 1,159,615.30 and 827,171.90 is: 1,159,615.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,171.90 : 1,159,615.30 = 827,171.90 : x
  2. Step 2: Convert to fraction form
    827,171.90/1,159,615.30 = 827,171.90/x
  3. Step 3: Cross multiply
    827,171.90x = 1,159,615.30 × 827,171.90
  4. Step 4: Simplify right side
    827,171.90x = 959,201,190,970.07
  5. Step 5: Solve for x
    x = 959,201,190,970.07/827,171.90
  6. Step 6: Final answer
    x = 1,159,615.30

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1.5x scale

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.