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Finding the Fourth Proportional to 893,148.40, 1,339,722.60 and 655,202.80

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Solution

The fourth proportional to 893,148.40, 1,339,722.60 and 655,202.80 is: 982,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,148.40 : 1,339,722.60 = 655,202.80 : x
  2. Step 2: Convert to fraction form
    893,148.40/1,339,722.60 = 655,202.80/x
  3. Step 3: Cross multiply
    893,148.40x = 1,339,722.60 × 655,202.80
  4. Step 4: Simplify right side
    893,148.40x = 877,789,998,743.28
  5. Step 5: Solve for x
    x = 877,789,998,743.28/893,148.40
  6. Step 6: Final answer
    x = 982,804.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.