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Finding the Fourth Proportional to 571,290.92, 856,939.42 and 171,928.96

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Solution

The fourth proportional to 571,290.92, 856,939.42 and 171,928.96 is: 257,894.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,290.92 : 856,939.42 = 171,928.96 : x
  2. Step 2: Convert to fraction form
    571,290.92/856,939.42 = 171,928.96/x
  3. Step 3: Cross multiply
    571,290.92x = 856,939.42 × 171,928.96
  4. Step 4: Simplify right side
    571,290.92x = 147,332,703,263.60
  5. Step 5: Solve for x
    x = 147,332,703,263.60/571,290.92
  6. Step 6: Final answer
    x = 257,894.35

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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.