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Finding the Fourth Proportional to 529,885,388.61, 731,116,750.13 and 445,433,590.83

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Solution

The fourth proportional to 529,885,388.61, 731,116,750.13 and 445,433,590.83 is: 614,593,205.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,885,388.61 : 731,116,750.13 = 445,433,590.83 : x
  2. Step 2: Convert to fraction form
    529,885,388.61/731,116,750.13 = 445,433,590.83/x
  3. Step 3: Cross multiply
    529,885,388.61x = 731,116,750.13 × 445,433,590.83
  4. Step 4: Simplify right side
    529,885,388.61x = 325,663,959,324,138,560
  5. Step 5: Solve for x
    x = 325,663,959,324,138,560/529,885,388.61
  6. Step 6: Final answer
    x = 614,593,205.11

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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.