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Finding the Fourth Proportional to 997,564.66, 1,373,739.78 and 866,681.80

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Solution

The fourth proportional to 997,564.66, 1,373,739.78 and 866,681.80 is: 1,193,501.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,564.66 : 1,373,739.78 = 866,681.80 : x
  2. Step 2: Convert to fraction form
    997,564.66/1,373,739.78 = 866,681.80/x
  3. Step 3: Cross multiply
    997,564.66x = 1,373,739.78 × 866,681.80
  4. Step 4: Simplify right side
    997,564.66x = 1,190,595,265,262.00
  5. Step 5: Solve for x
    x = 1,190,595,265,262.00/997,564.66
  6. Step 6: Final answer
    x = 1,193,501.85

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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.