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Finding the Fourth Proportional to 517,070.45, 775,605.89 and 162,112.14

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Solution

The fourth proportional to 517,070.45, 775,605.89 and 162,112.14 is: 243,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,070.45 : 775,605.89 = 162,112.14 : x
  2. Step 2: Convert to fraction form
    517,070.45/775,605.89 = 162,112.14/x
  3. Step 3: Cross multiply
    517,070.45x = 775,605.89 × 162,112.14
  4. Step 4: Simplify right side
    517,070.45x = 125,735,131,029.79
  5. Step 5: Solve for x
    x = 125,735,131,029.79/517,070.45
  6. Step 6: Final answer
    x = 243,168.28

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1.5x scale

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.