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Finding the Fourth Proportional to 538,856.70, 808,285.05 and 529,640.70

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Solution

The fourth proportional to 538,856.70, 808,285.05 and 529,640.70 is: 794,461.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,856.70 : 808,285.05 = 529,640.70 : x
  2. Step 2: Convert to fraction form
    538,856.70/808,285.05 = 529,640.70/x
  3. Step 3: Cross multiply
    538,856.70x = 808,285.05 × 529,640.70
  4. Step 4: Simplify right side
    538,856.70x = 428,100,659,681.54
  5. Step 5: Solve for x
    x = 428,100,659,681.54/538,856.70
  6. Step 6: Final answer
    x = 794,461.05

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Similar ratio
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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.