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Finding the Fourth Proportional to 386,587.16, 579,647.67 and 173,316.52

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Solution

The fourth proportional to 386,587.16, 579,647.67 and 173,316.52 is: 259,870.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,587.16 : 579,647.67 = 173,316.52 : x
  2. Step 2: Convert to fraction form
    386,587.16/579,647.67 = 173,316.52/x
  3. Step 3: Cross multiply
    386,587.16x = 579,647.67 × 173,316.52
  4. Step 4: Simplify right side
    386,587.16x = 100,462,515,541.39
  5. Step 5: Solve for x
    x = 100,462,515,541.39/386,587.16
  6. Step 6: Final answer
    x = 259,870.29

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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.