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Finding the Fourth Proportional to 611,465,499.22, 916,291,255.74 and 449,113,816.66

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Solution

The fourth proportional to 611,465,499.22, 916,291,255.74 and 449,113,816.66 is: 673,004,549.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,465,499.22 : 916,291,255.74 = 449,113,816.66 : x
  2. Step 2: Convert to fraction form
    611,465,499.22/916,291,255.74 = 449,113,816.66/x
  3. Step 3: Cross multiply
    611,465,499.22x = 916,291,255.74 × 449,113,816.66
  4. Step 4: Simplify right side
    611,465,499.22x = 411,519,063,037,575,552
  5. Step 5: Solve for x
    x = 411,519,063,037,575,552/611,465,499.22
  6. Step 6: Final answer
    x = 673,004,549.83

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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.