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Finding the Fourth Proportional to 303,447,777.90, 455,171,666.85 and 303,447,777.90

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Solution

The fourth proportional to 303,447,777.90, 455,171,666.85 and 303,447,777.90 is: 455,171,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,447,777.90 : 455,171,666.85 = 303,447,777.90 : x
  2. Step 2: Convert to fraction form
    303,447,777.90/455,171,666.85 = 303,447,777.90/x
  3. Step 3: Cross multiply
    303,447,777.90x = 455,171,666.85 × 303,447,777.90
  4. Step 4: Simplify right side
    303,447,777.90x = 138,120,830,868,671,584
  5. Step 5: Solve for x
    x = 138,120,830,868,671,584/303,447,777.90
  6. Step 6: Final answer
    x = 455,171,666.85

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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.