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Finding the Fourth Proportional to 629,871,890.40, 944,807,835.60 and 591,608,138.40

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Solution

The fourth proportional to 629,871,890.40, 944,807,835.60 and 591,608,138.40 is: 887,412,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,871,890.40 : 944,807,835.60 = 591,608,138.40 : x
  2. Step 2: Convert to fraction form
    629,871,890.40/944,807,835.60 = 591,608,138.40/x
  3. Step 3: Cross multiply
    629,871,890.40x = 944,807,835.60 × 591,608,138.40
  4. Step 4: Simplify right side
    629,871,890.40x = 558,956,004,765,049,216
  5. Step 5: Solve for x
    x = 558,956,004,765,049,216/629,871,890.40
  6. Step 6: Final answer
    x = 887,412,207.60

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Double scale
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Similar ratio
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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.