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Finding the Fourth Proportional to 629,857,399.80, 944,786,099.70 and 583,940,897.40

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Solution

The fourth proportional to 629,857,399.80, 944,786,099.70 and 583,940,897.40 is: 875,911,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857,399.80 : 944,786,099.70 = 583,940,897.40 : x
  2. Step 2: Convert to fraction form
    629,857,399.80/944,786,099.70 = 583,940,897.40/x
  3. Step 3: Cross multiply
    629,857,399.80x = 944,786,099.70 × 583,940,897.40
  4. Step 4: Simplify right side
    629,857,399.80x = 551,699,242,909,863,872
  5. Step 5: Solve for x
    x = 551,699,242,909,863,872/629,857,399.80
  6. Step 6: Final answer
    x = 875,911,346.10

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Similar ratio
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1.5x scale

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.