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Finding the Fourth Proportional to 1,293,274,620.48, 1,784,719,690.88 and 698,559,101.12

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Solution

The fourth proportional to 1,293,274,620.48, 1,784,719,690.88 and 698,559,101.12 is: 964,011,945.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,274,620.48 : 1,784,719,690.88 = 698,559,101.12 : x
  2. Step 2: Convert to fraction form
    1,293,274,620.48/1,784,719,690.88 = 698,559,101.12/x
  3. Step 3: Cross multiply
    1,293,274,620.48x = 1,784,719,690.88 × 698,559,101.12
  4. Step 4: Simplify right side
    1,293,274,620.48x = 1,246,732,183,012,297,216
  5. Step 5: Solve for x
    x = 1,246,732,183,012,297,216/1,293,274,620.48
  6. Step 6: Final answer
    x = 964,011,945.54

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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.