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Finding the Fourth Proportional to 702,466,836, 969,404,233.68 and 393,417,492

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Solution

The fourth proportional to 702,466,836, 969,404,233.68 and 393,417,492 is: 542,916,138.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,466,836 : 969,404,233.68 = 393,417,492 : x
  2. Step 2: Convert to fraction form
    702,466,836/969,404,233.68 = 393,417,492/x
  3. Step 3: Cross multiply
    702,466,836x = 969,404,233.68 × 393,417,492
  4. Step 4: Simplify right side
    702,466,836x = 381,380,582,348,567,488
  5. Step 5: Solve for x
    x = 381,380,582,348,567,488/702,466,836
  6. Step 6: Final answer
    x = 542,916,138.96

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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.