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Finding the Fourth Proportional to 692,592,418, 955,807,581 and 383,543,074

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Solution

The fourth proportional to 692,592,418, 955,807,581 and 383,543,074 is: 529,306,079.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,592,418 : 955,807,581 = 383,543,074 : x
  2. Step 2: Convert to fraction form
    692,592,418/955,807,581 = 383,543,074/x
  3. Step 3: Cross multiply
    692,592,418x = 955,807,581 × 383,543,074
  4. Step 4: Simplify right side
    692,592,418x = 366,593,377,769,243,968
  5. Step 5: Solve for x
    x = 366,593,377,769,243,968/692,592,418
  6. Step 6: Final answer
    x = 529,306,079.94

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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.