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Finding the Fourth Proportional to 590,947.40, 886,421.10 and 253,930.70

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Solution

The fourth proportional to 590,947.40, 886,421.10 and 253,930.70 is: 380,896.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,947.40 : 886,421.10 = 253,930.70 : x
  2. Step 2: Convert to fraction form
    590,947.40/886,421.10 = 253,930.70/x
  3. Step 3: Cross multiply
    590,947.40x = 886,421.10 × 253,930.70
  4. Step 4: Simplify right side
    590,947.40x = 225,089,530,417.77
  5. Step 5: Solve for x
    x = 225,089,530,417.77/590,947.40
  6. Step 6: Final answer
    x = 380,896.05

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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.