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Finding the Fourth Proportional to 652,245.60, 978,368.40 and 605,006.40

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Solution

The fourth proportional to 652,245.60, 978,368.40 and 605,006.40 is: 907,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,245.60 : 978,368.40 = 605,006.40 : x
  2. Step 2: Convert to fraction form
    652,245.60/978,368.40 = 605,006.40/x
  3. Step 3: Cross multiply
    652,245.60x = 978,368.40 × 605,006.40
  4. Step 4: Simplify right side
    652,245.60x = 591,919,143,557.76
  5. Step 5: Solve for x
    x = 591,919,143,557.76/652,245.60
  6. Step 6: Final answer
    x = 907,509.60

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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.