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Finding the Fourth Proportional to 571,017.60, 856,234.80 and 211,170.24

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Solution

The fourth proportional to 571,017.60, 856,234.80 and 211,170.24 is: 316,647.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,017.60 : 856,234.80 = 211,170.24 : x
  2. Step 2: Convert to fraction form
    571,017.60/856,234.80 = 211,170.24/x
  3. Step 3: Cross multiply
    571,017.60x = 856,234.80 × 211,170.24
  4. Step 4: Simplify right side
    571,017.60x = 180,811,308,212.35
  5. Step 5: Solve for x
    x = 180,811,308,212.35/571,017.60
  6. Step 6: Final answer
    x = 316,647.52

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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.