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Finding the Fourth Proportional to 664,848,031.80, 932,317,794.60 and 664,848,031.80

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Solution

The fourth proportional to 664,848,031.80, 932,317,794.60 and 664,848,031.80 is: 932,317,794.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,848,031.80 : 932,317,794.60 = 664,848,031.80 : x
  2. Step 2: Convert to fraction form
    664,848,031.80/932,317,794.60 = 664,848,031.80/x
  3. Step 3: Cross multiply
    664,848,031.80x = 932,317,794.60 × 664,848,031.80
  4. Step 4: Simplify right side
    664,848,031.80x = 619,849,650,751,926,656
  5. Step 5: Solve for x
    x = 619,849,650,751,926,656/664,848,031.80
  6. Step 6: Final answer
    x = 932,317,794.60

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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.