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Finding the Fourth Proportional to 652,111.60, 978,167.40 and 368,676.40

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Solution

The fourth proportional to 652,111.60, 978,167.40 and 368,676.40 is: 553,014.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,111.60 : 978,167.40 = 368,676.40 : x
  2. Step 2: Convert to fraction form
    652,111.60/978,167.40 = 368,676.40/x
  3. Step 3: Cross multiply
    652,111.60x = 978,167.40 × 368,676.40
  4. Step 4: Simplify right side
    652,111.60x = 360,627,235,629.36
  5. Step 5: Solve for x
    x = 360,627,235,629.36/652,111.60
  6. Step 6: Final answer
    x = 553,014.60

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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.