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Finding the Fourth Proportional to 476,928,709.70, 715,393,064.55 and 476,928,709.70

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Solution

The fourth proportional to 476,928,709.70, 715,393,064.55 and 476,928,709.70 is: 715,393,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,928,709.70 : 715,393,064.55 = 476,928,709.70 : x
  2. Step 2: Convert to fraction form
    476,928,709.70/715,393,064.55 = 476,928,709.70/x
  3. Step 3: Cross multiply
    476,928,709.70x = 715,393,064.55 × 476,928,709.70
  4. Step 4: Simplify right side
    476,928,709.70x = 341,191,491,204,160,256
  5. Step 5: Solve for x
    x = 341,191,491,204,160,256/476,928,709.70
  6. Step 6: Final answer
    x = 715,393,064.55

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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.