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Finding the Fourth Proportional to 301,613,802.60, 452,420,703.90 and 198,301,672.20

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Solution

The fourth proportional to 301,613,802.60, 452,420,703.90 and 198,301,672.20 is: 297,452,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,613,802.60 : 452,420,703.90 = 198,301,672.20 : x
  2. Step 2: Convert to fraction form
    301,613,802.60/452,420,703.90 = 198,301,672.20/x
  3. Step 3: Cross multiply
    301,613,802.60x = 452,420,703.90 × 198,301,672.20
  4. Step 4: Simplify right side
    301,613,802.60x = 89,715,782,121,271,056
  5. Step 5: Solve for x
    x = 89,715,782,121,271,056/301,613,802.60
  6. Step 6: Final answer
    x = 297,452,508.30

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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.