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Finding the Fourth Proportional to 629,991,743.60, 944,987,615.40 and 572,548,876.40

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Solution

The fourth proportional to 629,991,743.60, 944,987,615.40 and 572,548,876.40 is: 858,823,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,991,743.60 : 944,987,615.40 = 572,548,876.40 : x
  2. Step 2: Convert to fraction form
    629,991,743.60/944,987,615.40 = 572,548,876.40/x
  3. Step 3: Cross multiply
    629,991,743.60x = 944,987,615.40 × 572,548,876.40
  4. Step 4: Simplify right side
    629,991,743.60x = 541,051,597,409,185,280
  5. Step 5: Solve for x
    x = 541,051,597,409,185,280/629,991,743.60
  6. Step 6: Final answer
    x = 858,823,314.60

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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.