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Finding the Fourth Proportional to 550,694,618.91, 760,013,471.34 and 411,223,242.87

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Solution

The fourth proportional to 550,694,618.91, 760,013,471.34 and 411,223,242.87 is: 567,529,068.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,694,618.91 : 760,013,471.34 = 411,223,242.87 : x
  2. Step 2: Convert to fraction form
    550,694,618.91/760,013,471.34 = 411,223,242.87/x
  3. Step 3: Cross multiply
    550,694,618.91x = 760,013,471.34 × 411,223,242.87
  4. Step 4: Simplify right side
    550,694,618.91x = 312,535,204,309,320,640
  5. Step 5: Solve for x
    x = 312,535,204,309,320,640/550,694,618.91
  6. Step 6: Final answer
    x = 567,529,068.88

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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.