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Finding the Fourth Proportional to 528,903.43, 793,380.66 and 173,909.59

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Solution

The fourth proportional to 528,903.43, 793,380.66 and 173,909.59 is: 260,872.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,903.43 : 793,380.66 = 173,909.59 : x
  2. Step 2: Convert to fraction form
    528,903.43/793,380.66 = 173,909.59/x
  3. Step 3: Cross multiply
    528,903.43x = 793,380.66 × 173,909.59
  4. Step 4: Simplify right side
    528,903.43x = 137,976,505,294.53
  5. Step 5: Solve for x
    x = 137,976,505,294.53/528,903.43
  6. Step 6: Final answer
    x = 260,872.77

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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.