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Finding the Fourth Proportional to 404,755,993.35, 558,563,457.68 and 219,117,009.03

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Solution

The fourth proportional to 404,755,993.35, 558,563,457.68 and 219,117,009.03 is: 302,381,573.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,755,993.35 : 558,563,457.68 = 219,117,009.03 : x
  2. Step 2: Convert to fraction form
    404,755,993.35/558,563,457.68 = 219,117,009.03/x
  3. Step 3: Cross multiply
    404,755,993.35x = 558,563,457.68 × 219,117,009.03
  4. Step 4: Simplify right side
    404,755,993.35x = 122,390,754,200,296,576
  5. Step 5: Solve for x
    x = 122,390,754,200,296,576/404,755,993.35
  6. Step 6: Final answer
    x = 302,381,573.62

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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.