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Finding the Fourth Proportional to 891,544.56, 1,230,040.90 and 504,322.54

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Solution

The fourth proportional to 891,544.56, 1,230,040.90 and 504,322.54 is: 695,800.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,544.56 : 1,230,040.90 = 504,322.54 : x
  2. Step 2: Convert to fraction form
    891,544.56/1,230,040.90 = 504,322.54/x
  3. Step 3: Cross multiply
    891,544.56x = 1,230,040.90 × 504,322.54
  4. Step 4: Simplify right side
    891,544.56x = 620,337,354,445.60
  5. Step 5: Solve for x
    x = 620,337,354,445.60/891,544.56
  6. Step 6: Final answer
    x = 695,800.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.