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Finding the Fourth Proportional to 404,755,959.42, 558,563,410.88 and 219,116,975.11

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Solution

The fourth proportional to 404,755,959.42, 558,563,410.88 and 219,116,975.11 is: 302,381,526.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,755,959.42 : 558,563,410.88 = 219,116,975.11 : x
  2. Step 2: Convert to fraction form
    404,755,959.42/558,563,410.88 = 219,116,975.11/x
  3. Step 3: Cross multiply
    404,755,959.42x = 558,563,410.88 × 219,116,975.11
  4. Step 4: Simplify right side
    404,755,959.42x = 122,390,724,997,479,344
  5. Step 5: Solve for x
    x = 122,390,724,997,479,344/404,755,959.42
  6. Step 6: Final answer
    x = 302,381,526.82

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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.