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Finding the Fourth Proportional to 490,643.10, 735,964.65 and 490,643.10

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Solution

The fourth proportional to 490,643.10, 735,964.65 and 490,643.10 is: 735,964.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,643.10 : 735,964.65 = 490,643.10 : x
  2. Step 2: Convert to fraction form
    490,643.10/735,964.65 = 490,643.10/x
  3. Step 3: Cross multiply
    490,643.10x = 735,964.65 × 490,643.10
  4. Step 4: Simplify right side
    490,643.10x = 361,095,977,366.42
  5. Step 5: Solve for x
    x = 361,095,977,366.42/490,643.10
  6. Step 6: Final answer
    x = 735,964.65

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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.