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Finding the Fourth Proportional to 629,991,742.60, 944,987,613.90 and 572,548,875.40

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Solution

The fourth proportional to 629,991,742.60, 944,987,613.90 and 572,548,875.40 is: 858,823,313.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,991,742.60 : 944,987,613.90 = 572,548,875.40 : x
  2. Step 2: Convert to fraction form
    629,991,742.60/944,987,613.90 = 572,548,875.40/x
  3. Step 3: Cross multiply
    629,991,742.60x = 944,987,613.90 × 572,548,875.40
  4. Step 4: Simplify right side
    629,991,742.60x = 541,051,595,605,374,400
  5. Step 5: Solve for x
    x = 541,051,595,605,374,400/629,991,742.60
  6. Step 6: Final answer
    x = 858,823,313.10

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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.