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Finding the Fourth Proportional to 695,807.60, 1,043,808.60 and 296,445.20

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Solution

The fourth proportional to 695,807.60, 1,043,808.60 and 296,445.20 is: 444,709.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,807.60 : 1,043,808.60 = 296,445.20 : x
  2. Step 2: Convert to fraction form
    695,807.60/1,043,808.60 = 296,445.20/x
  3. Step 3: Cross multiply
    695,807.60x = 1,043,808.60 × 296,445.20
  4. Step 4: Simplify right side
    695,807.60x = 309,432,049,188.72
  5. Step 5: Solve for x
    x = 309,432,049,188.72/695,807.60
  6. Step 6: Final answer
    x = 444,709.21

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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.