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Finding the Fourth Proportional to 614,369.45, 921,553.38 and 165,090.33

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Solution

The fourth proportional to 614,369.45, 921,553.38 and 165,090.33 is: 247,635.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,369.45 : 921,553.38 = 165,090.33 : x
  2. Step 2: Convert to fraction form
    614,369.45/921,553.38 = 165,090.33/x
  3. Step 3: Cross multiply
    614,369.45x = 921,553.38 × 165,090.33
  4. Step 4: Simplify right side
    614,369.45x = 152,139,551,616.82
  5. Step 5: Solve for x
    x = 152,139,551,616.82/614,369.45
  6. Step 6: Final answer
    x = 247,635.28

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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.