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Finding the Fourth Proportional to 590,923.60, 886,385.40 and 217,092.40

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Solution

The fourth proportional to 590,923.60, 886,385.40 and 217,092.40 is: 325,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,923.60 : 886,385.40 = 217,092.40 : x
  2. Step 2: Convert to fraction form
    590,923.60/886,385.40 = 217,092.40/x
  3. Step 3: Cross multiply
    590,923.60x = 886,385.40 × 217,092.40
  4. Step 4: Simplify right side
    590,923.60x = 192,427,533,810.96
  5. Step 5: Solve for x
    x = 192,427,533,810.96/590,923.60
  6. Step 6: Final answer
    x = 325,638.60

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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.