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Finding the Fourth Proportional to 442,868,611.30, 664,302,916.95 and 442,868,611.30

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Solution

The fourth proportional to 442,868,611.30, 664,302,916.95 and 442,868,611.30 is: 664,302,916.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,868,611.30 : 664,302,916.95 = 442,868,611.30 : x
  2. Step 2: Convert to fraction form
    442,868,611.30/664,302,916.95 = 442,868,611.30/x
  3. Step 3: Cross multiply
    442,868,611.30x = 664,302,916.95 × 442,868,611.30
  4. Step 4: Simplify right side
    442,868,611.30x = 294,198,910,312,185,792
  5. Step 5: Solve for x
    x = 294,198,910,312,185,792/442,868,611.30
  6. Step 6: Final answer
    x = 664,302,916.95

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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.