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Finding the Fourth Proportional to 652,173.60, 978,260.40 and 533,978.40

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Solution

The fourth proportional to 652,173.60, 978,260.40 and 533,978.40 is: 800,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,173.60 : 978,260.40 = 533,978.40 : x
  2. Step 2: Convert to fraction form
    652,173.60/978,260.40 = 533,978.40/x
  3. Step 3: Cross multiply
    652,173.60x = 978,260.40 × 533,978.40
  4. Step 4: Simplify right side
    652,173.60x = 522,369,923,175.36
  5. Step 5: Solve for x
    x = 522,369,923,175.36/652,173.60
  6. Step 6: Final answer
    x = 800,967.60

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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.