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Finding the Fourth Proportional to 629,857,378.40, 882,707,322.40 and 629,857,378.40

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Solution

The fourth proportional to 629,857,378.40, 882,707,322.40 and 629,857,378.40 is: 882,707,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857,378.40 : 882,707,322.40 = 629,857,378.40 : x
  2. Step 2: Convert to fraction form
    629,857,378.40/882,707,322.40 = 629,857,378.40/x
  3. Step 3: Cross multiply
    629,857,378.40x = 882,707,322.40 × 629,857,378.40
  4. Step 4: Simplify right side
    629,857,378.40x = 555,979,719,981,347,584
  5. Step 5: Solve for x
    x = 555,979,719,981,347,584/629,857,378.40
  6. Step 6: Final answer
    x = 882,707,322.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.