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Finding the Fourth Proportional to 605,662.20, 907,715.70 and 464,722.20

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Solution

The fourth proportional to 605,662.20, 907,715.70 and 464,722.20 is: 696,486.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,662.20 : 907,715.70 = 464,722.20 : x
  2. Step 2: Convert to fraction form
    605,662.20/907,715.70 = 464,722.20/x
  3. Step 3: Cross multiply
    605,662.20x = 907,715.70 × 464,722.20
  4. Step 4: Simplify right side
    605,662.20x = 421,835,637,078.54
  5. Step 5: Solve for x
    x = 421,835,637,078.54/605,662.20
  6. Step 6: Final answer
    x = 696,486.65

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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.