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Finding the Fourth Proportional to 650,940.60, 976,410.90 and 545,964.60

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Solution

The fourth proportional to 650,940.60, 976,410.90 and 545,964.60 is: 818,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,940.60 : 976,410.90 = 545,964.60 : x
  2. Step 2: Convert to fraction form
    650,940.60/976,410.90 = 545,964.60/x
  3. Step 3: Cross multiply
    650,940.60x = 976,410.90 × 545,964.60
  4. Step 4: Simplify right side
    650,940.60x = 533,085,786,454.14
  5. Step 5: Solve for x
    x = 533,085,786,454.14/650,940.60
  6. Step 6: Final answer
    x = 818,946.90

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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.