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Finding the Fourth Proportional to 652,174.60, 978,261.90 and 533,979.40

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Solution

The fourth proportional to 652,174.60, 978,261.90 and 533,979.40 is: 800,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,174.60 : 978,261.90 = 533,979.40 : x
  2. Step 2: Convert to fraction form
    652,174.60/978,261.90 = 533,979.40/x
  3. Step 3: Cross multiply
    652,174.60x = 978,261.90 × 533,979.40
  4. Step 4: Simplify right side
    652,174.60x = 522,371,702,404.86
  5. Step 5: Solve for x
    x = 522,371,702,404.86/652,174.60
  6. Step 6: Final answer
    x = 800,969.10

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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.