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Finding the Fourth Proportional to 528,796.51, 793,026.28 and 173,728.15

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Solution

The fourth proportional to 528,796.51, 793,026.28 and 173,728.15 is: 260,536.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,796.51 : 793,026.28 = 173,728.15 : x
  2. Step 2: Convert to fraction form
    528,796.51/793,026.28 = 173,728.15/x
  3. Step 3: Cross multiply
    528,796.51x = 793,026.28 × 173,728.15
  4. Step 4: Simplify right side
    528,796.51x = 137,770,988,525.78
  5. Step 5: Solve for x
    x = 137,770,988,525.78/528,796.51
  6. Step 6: Final answer
    x = 260,536.87

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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.