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Finding the Fourth Proportional to 275,603,219.80, 413,404,829.70 and 245,470,515.10

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Solution

The fourth proportional to 275,603,219.80, 413,404,829.70 and 245,470,515.10 is: 368,205,772.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,603,219.80 : 413,404,829.70 = 245,470,515.10 : x
  2. Step 2: Convert to fraction form
    275,603,219.80/413,404,829.70 = 245,470,515.10/x
  3. Step 3: Cross multiply
    275,603,219.80x = 413,404,829.70 × 245,470,515.10
  4. Step 4: Simplify right side
    275,603,219.80x = 101,478,696,491,286,768
  5. Step 5: Solve for x
    x = 101,478,696,491,286,768/275,603,219.80
  6. Step 6: Final answer
    x = 368,205,772.65

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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.