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Finding the Fourth Proportional to 816,918.30, 1,144,866.60 and 816,918.30

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Solution

The fourth proportional to 816,918.30, 1,144,866.60 and 816,918.30 is: 1,144,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,918.30 : 1,144,866.60 = 816,918.30 : x
  2. Step 2: Convert to fraction form
    816,918.30/1,144,866.60 = 816,918.30/x
  3. Step 3: Cross multiply
    816,918.30x = 1,144,866.60 × 816,918.30
  4. Step 4: Simplify right side
    816,918.30x = 935,262,476,598.78
  5. Step 5: Solve for x
    x = 935,262,476,598.78/816,918.30
  6. Step 6: Final answer
    x = 1,144,866.60

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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.