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Finding the Fourth Proportional to 652,213.60, 978,320.40 and 604,974.40

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Solution

The fourth proportional to 652,213.60, 978,320.40 and 604,974.40 is: 907,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,213.60 : 978,320.40 = 604,974.40 : x
  2. Step 2: Convert to fraction form
    652,213.60/978,320.40 = 604,974.40/x
  3. Step 3: Cross multiply
    652,213.60x = 978,320.40 × 604,974.40
  4. Step 4: Simplify right side
    652,213.60x = 591,858,796,997.76
  5. Step 5: Solve for x
    x = 591,858,796,997.76/652,213.60
  6. Step 6: Final answer
    x = 907,461.60

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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.