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Finding the Fourth Proportional to 664,848,045.55, 932,317,813.85 and 664,848,045.55

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Solution

The fourth proportional to 664,848,045.55, 932,317,813.85 and 664,848,045.55 is: 932,317,813.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,848,045.55 : 932,317,813.85 = 664,848,045.55 : x
  2. Step 2: Convert to fraction form
    664,848,045.55/932,317,813.85 = 664,848,045.55/x
  3. Step 3: Cross multiply
    664,848,045.55x = 932,317,813.85 × 664,848,045.55
  4. Step 4: Simplify right side
    664,848,045.55x = 619,849,676,369,621,248
  5. Step 5: Solve for x
    x = 619,849,676,369,621,248/664,848,045.55
  6. Step 6: Final answer
    x = 932,317,813.85

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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.