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Finding the Fourth Proportional to 1,959,631,998.88, 2,938,427,340 and 924,214,869.76

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Solution

The fourth proportional to 1,959,631,998.88, 2,938,427,340 and 924,214,869.76 is: 1,385,840,934.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959,631,998.88 : 2,938,427,340 = 924,214,869.76 : x
  2. Step 2: Convert to fraction form
    1,959,631,998.88/2,938,427,340 = 924,214,869.76/x
  3. Step 3: Cross multiply
    1,959,631,998.88x = 2,938,427,340 × 924,214,869.76
  4. Step 4: Simplify right side
    1,959,631,998.88x = 2,715,738,241,337,323,008
  5. Step 5: Solve for x
    x = 2,715,738,241,337,323,008/1,959,631,998.88
  6. Step 6: Final answer
    x = 1,385,840,934.87

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Double scale
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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.