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Finding the Fourth Proportional to 591,106.40, 886,659.60 and 413,813.60

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Solution

The fourth proportional to 591,106.40, 886,659.60 and 413,813.60 is: 620,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,106.40 : 886,659.60 = 413,813.60 : x
  2. Step 2: Convert to fraction form
    591,106.40/886,659.60 = 413,813.60/x
  3. Step 3: Cross multiply
    591,106.40x = 886,659.60 × 413,813.60
  4. Step 4: Simplify right side
    591,106.40x = 366,911,801,050.56
  5. Step 5: Solve for x
    x = 366,911,801,050.56/591,106.40
  6. Step 6: Final answer
    x = 620,720.40

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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.