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Finding the Fourth Proportional to 635,754,723.57, 954,508,887.84 and 438,550,506.00

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Solution

The fourth proportional to 635,754,723.57, 954,508,887.84 and 438,550,506.00 is: 658,430,586.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,754,723.57 : 954,508,887.84 = 438,550,506.00 : x
  2. Step 2: Convert to fraction form
    635,754,723.57/954,508,887.84 = 438,550,506.00/x
  3. Step 3: Cross multiply
    635,754,723.57x = 954,508,887.84 × 438,550,506.00
  4. Step 4: Simplify right side
    635,754,723.57x = 418,600,355,748,065,536
  5. Step 5: Solve for x
    x = 418,600,355,748,065,536/635,754,723.57
  6. Step 6: Final answer
    x = 658,430,586.87

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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.