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Finding the Fourth Proportional to 589,115.70, 883,673.55 and 215,090.10

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Solution

The fourth proportional to 589,115.70, 883,673.55 and 215,090.10 is: 322,635.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,115.70 : 883,673.55 = 215,090.10 : x
  2. Step 2: Convert to fraction form
    589,115.70/883,673.55 = 215,090.10/x
  3. Step 3: Cross multiply
    589,115.70x = 883,673.55 × 215,090.10
  4. Step 4: Simplify right side
    589,115.70x = 190,069,432,236.86
  5. Step 5: Solve for x
    x = 190,069,432,236.86/589,115.70
  6. Step 6: Final answer
    x = 322,635.15

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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.