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Finding the Fourth Proportional to 704,774,318.40, 972,616,138.56 and 482,222,777.76

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Solution

The fourth proportional to 704,774,318.40, 972,616,138.56 and 482,222,777.76 is: 665,486,303.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,774,318.40 : 972,616,138.56 = 482,222,777.76 : x
  2. Step 2: Convert to fraction form
    704,774,318.40/972,616,138.56 = 482,222,777.76/x
  3. Step 3: Cross multiply
    704,774,318.40x = 972,616,138.56 × 482,222,777.76
  4. Step 4: Simplify right side
    704,774,318.40x = 469,017,656,030,608,192
  5. Step 5: Solve for x
    x = 469,017,656,030,608,192/704,774,318.40
  6. Step 6: Final answer
    x = 665,486,303.61

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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.