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Finding the Fourth Proportional to 514,346.70, 771,520.05 and 214,727.70

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Solution

The fourth proportional to 514,346.70, 771,520.05 and 214,727.70 is: 322,091.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,346.70 : 771,520.05 = 214,727.70 : x
  2. Step 2: Convert to fraction form
    514,346.70/771,520.05 = 214,727.70/x
  3. Step 3: Cross multiply
    514,346.70x = 771,520.05 × 214,727.70
  4. Step 4: Simplify right side
    514,346.70x = 165,666,725,840.39
  5. Step 5: Solve for x
    x = 165,666,725,840.39/514,346.70
  6. Step 6: Final answer
    x = 322,091.55

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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.