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Finding the Fourth Proportional to 885,959,095.90, 1,328,938,643.85 and 523,162,039.90

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Solution

The fourth proportional to 885,959,095.90, 1,328,938,643.85 and 523,162,039.90 is: 784,743,059.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,959,095.90 : 1,328,938,643.85 = 523,162,039.90 : x
  2. Step 2: Convert to fraction form
    885,959,095.90/1,328,938,643.85 = 523,162,039.90/x
  3. Step 3: Cross multiply
    885,959,095.90x = 1,328,938,643.85 × 523,162,039.90
  4. Step 4: Simplify right side
    885,959,095.90x = 695,250,251,818,505,472
  5. Step 5: Solve for x
    x = 695,250,251,818,505,472/885,959,095.90
  6. Step 6: Final answer
    x = 784,743,059.85

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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.