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Finding the Fourth Proportional to 577,157.76, 865,933.47 and 310,945.59

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Solution

The fourth proportional to 577,157.76, 865,933.47 and 310,945.59 is: 466,524.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,157.76 : 865,933.47 = 310,945.59 : x
  2. Step 2: Convert to fraction form
    577,157.76/865,933.47 = 310,945.59/x
  3. Step 3: Cross multiply
    577,157.76x = 865,933.47 × 310,945.59
  4. Step 4: Simplify right side
    577,157.76x = 269,258,193,729.90
  5. Step 5: Solve for x
    x = 269,258,193,729.90/577,157.76
  6. Step 6: Final answer
    x = 466,524.43

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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.