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Finding the Fourth Proportional to 374,773.60, 561,504.30 and 307,851.40

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Solution

The fourth proportional to 374,773.60, 561,504.30 and 307,851.40 is: 461,238.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,773.60 : 561,504.30 = 307,851.40 : x
  2. Step 2: Convert to fraction form
    374,773.60/561,504.30 = 307,851.40/x
  3. Step 3: Cross multiply
    374,773.60x = 561,504.30 × 307,851.40
  4. Step 4: Simplify right side
    374,773.60x = 172,859,884,861.02
  5. Step 5: Solve for x
    x = 172,859,884,861.02/374,773.60
  6. Step 6: Final answer
    x = 461,238.16

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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.