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Finding the Fourth Proportional to 550,383.66, 759,221.91 and 346,358.43

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Solution

The fourth proportional to 550,383.66, 759,221.91 and 346,358.43 is: 477,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,383.66 : 759,221.91 = 346,358.43 : x
  2. Step 2: Convert to fraction form
    550,383.66/759,221.91 = 346,358.43/x
  3. Step 3: Cross multiply
    550,383.66x = 759,221.91 × 346,358.43
  4. Step 4: Simplify right side
    550,383.66x = 262,962,908,769.20
  5. Step 5: Solve for x
    x = 262,962,908,769.20/550,383.66
  6. Step 6: Final answer
    x = 477,781.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.