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Finding the Fourth Proportional to 303,427,216.80, 455,140,825.20 and 303,427,216.80

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Solution

The fourth proportional to 303,427,216.80, 455,140,825.20 and 303,427,216.80 is: 455,140,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,427,216.80 : 455,140,825.20 = 303,427,216.80 : x
  2. Step 2: Convert to fraction form
    303,427,216.80/455,140,825.20 = 303,427,216.80/x
  3. Step 3: Cross multiply
    303,427,216.80x = 455,140,825.20 × 303,427,216.80
  4. Step 4: Simplify right side
    303,427,216.80x = 138,102,113,842,491,312
  5. Step 5: Solve for x
    x = 138,102,113,842,491,312/303,427,216.80
  6. Step 6: Final answer
    x = 455,140,825.20

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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.