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Finding the Fourth Proportional to 996,495,155.31, 1,375,136,671.62 and 550,448,918.52

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Solution

The fourth proportional to 996,495,155.31, 1,375,136,671.62 and 550,448,918.52 is: 759,604,790.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,495,155.31 : 1,375,136,671.62 = 550,448,918.52 : x
  2. Step 2: Convert to fraction form
    996,495,155.31/1,375,136,671.62 = 550,448,918.52/x
  3. Step 3: Cross multiply
    996,495,155.31x = 1,375,136,671.62 × 550,448,918.52
  4. Step 4: Simplify right side
    996,495,155.31x = 756,942,493,710,421,248
  5. Step 5: Solve for x
    x = 756,942,493,710,421,248/996,495,155.31
  6. Step 6: Final answer
    x = 759,604,790.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.