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Finding the Fourth Proportional to 571,235.40, 856,680.39 and 171,770.13

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Solution

The fourth proportional to 571,235.40, 856,680.39 and 171,770.13 is: 257,603.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,235.40 : 856,680.39 = 171,770.13 : x
  2. Step 2: Convert to fraction form
    571,235.40/856,680.39 = 171,770.13/x
  3. Step 3: Cross multiply
    571,235.40x = 856,680.39 × 171,770.13
  4. Step 4: Simplify right side
    571,235.40x = 147,152,101,958.75
  5. Step 5: Solve for x
    x = 147,152,101,958.75/571,235.40
  6. Step 6: Final answer
    x = 257,603.26

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Double scale
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Similar ratio
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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.