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Finding the Fourth Proportional to 644,293.32, 966,364.92 and 171,015.45

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Solution

The fourth proportional to 644,293.32, 966,364.92 and 171,015.45 is: 256,503.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,293.32 : 966,364.92 = 171,015.45 : x
  2. Step 2: Convert to fraction form
    644,293.32/966,364.92 = 171,015.45/x
  3. Step 3: Cross multiply
    644,293.32x = 966,364.92 × 171,015.45
  4. Step 4: Simplify right side
    644,293.32x = 165,263,331,658.01
  5. Step 5: Solve for x
    x = 165,263,331,658.01/644,293.32
  6. Step 6: Final answer
    x = 256,503.25

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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.