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Finding the Fourth Proportional to 528,713.96, 793,195.74 and 173,729

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Solution

The fourth proportional to 528,713.96, 793,195.74 and 173,729 is: 260,634.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,713.96 : 793,195.74 = 173,729 : x
  2. Step 2: Convert to fraction form
    528,713.96/793,195.74 = 173,729/x
  3. Step 3: Cross multiply
    528,713.96x = 793,195.74 × 173,729
  4. Step 4: Simplify right side
    528,713.96x = 137,801,102,714.46
  5. Step 5: Solve for x
    x = 137,801,102,714.46/528,713.96
  6. Step 6: Final answer
    x = 260,634.51

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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.