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Finding the Fourth Proportional to 629,857,346.60, 944,786,019.90 and 572,414,479.40

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Solution

The fourth proportional to 629,857,346.60, 944,786,019.90 and 572,414,479.40 is: 858,621,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857,346.60 : 944,786,019.90 = 572,414,479.40 : x
  2. Step 2: Convert to fraction form
    629,857,346.60/944,786,019.90 = 572,414,479.40/x
  3. Step 3: Cross multiply
    629,857,346.60x = 944,786,019.90 × 572,414,479.40
  4. Step 4: Simplify right side
    629,857,346.60x = 540,809,197,725,456,512
  5. Step 5: Solve for x
    x = 540,809,197,725,456,512/629,857,346.60
  6. Step 6: Final answer
    x = 858,621,719.10

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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.