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Finding the Fourth Proportional to 571,453.67, 857,227.17 and 286,997.91

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Solution

The fourth proportional to 571,453.67, 857,227.17 and 286,997.91 is: 430,520.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,453.67 : 857,227.17 = 286,997.91 : x
  2. Step 2: Convert to fraction form
    571,453.67/857,227.17 = 286,997.91/x
  3. Step 3: Cross multiply
    571,453.67x = 857,227.17 × 286,997.91
  4. Step 4: Simplify right side
    571,453.67x = 246,022,406,185.22
  5. Step 5: Solve for x
    x = 246,022,406,185.22/571,453.67
  6. Step 6: Final answer
    x = 430,520.31

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Half scale
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Double scale
Find fourth proportional to 571,454.67, 857,228.67 and 286,998.91
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.