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Finding the Fourth Proportional to 702,518.72, 1,053,778.02 and 170,039.72

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Solution

The fourth proportional to 702,518.72, 1,053,778.02 and 170,039.72 is: 255,059.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,518.72 : 1,053,778.02 = 170,039.72 : x
  2. Step 2: Convert to fraction form
    702,518.72/1,053,778.02 = 170,039.72/x
  3. Step 3: Cross multiply
    702,518.72x = 1,053,778.02 × 170,039.72
  4. Step 4: Simplify right side
    702,518.72x = 179,184,119,462.95
  5. Step 5: Solve for x
    x = 179,184,119,462.95/702,518.72
  6. Step 6: Final answer
    x = 255,059.57

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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.