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Finding the Fourth Proportional to 827,231.90, 1,155,762.70 and 827,231.90

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Solution

The fourth proportional to 827,231.90, 1,155,762.70 and 827,231.90 is: 1,155,762.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,231.90 : 1,155,762.70 = 827,231.90 : x
  2. Step 2: Convert to fraction form
    827,231.90/1,155,762.70 = 827,231.90/x
  3. Step 3: Cross multiply
    827,231.90x = 1,155,762.70 × 827,231.90
  4. Step 4: Simplify right side
    827,231.90x = 956,083,774,270.13
  5. Step 5: Solve for x
    x = 956,083,774,270.13/827,231.90
  6. Step 6: Final answer
    x = 1,155,762.70

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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.