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Finding the Fourth Proportional to 665,056.70, 997,585.05 and 332,512.70

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Solution

The fourth proportional to 665,056.70, 997,585.05 and 332,512.70 is: 498,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,056.70 : 997,585.05 = 332,512.70 : x
  2. Step 2: Convert to fraction form
    665,056.70/997,585.05 = 332,512.70/x
  3. Step 3: Cross multiply
    665,056.70x = 997,585.05 × 332,512.70
  4. Step 4: Simplify right side
    665,056.70x = 331,709,698,455.14
  5. Step 5: Solve for x
    x = 331,709,698,455.14/665,056.70
  6. Step 6: Final answer
    x = 498,769.05

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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.