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Finding the Fourth Proportional to 580,095.40, 869,682.30 and 317,439.40

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Solution

The fourth proportional to 580,095.40, 869,682.30 and 317,439.40 is: 475,906.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,095.40 : 869,682.30 = 317,439.40 : x
  2. Step 2: Convert to fraction form
    580,095.40/869,682.30 = 317,439.40/x
  3. Step 3: Cross multiply
    580,095.40x = 869,682.30 × 317,439.40
  4. Step 4: Simplify right side
    580,095.40x = 276,071,427,502.62
  5. Step 5: Solve for x
    x = 276,071,427,502.62/580,095.40
  6. Step 6: Final answer
    x = 475,906.94

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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.