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Finding the Fourth Proportional to 659,220.40, 988,830.60 and 160,584.40

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Solution

The fourth proportional to 659,220.40, 988,830.60 and 160,584.40 is: 240,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,220.40 : 988,830.60 = 160,584.40 : x
  2. Step 2: Convert to fraction form
    659,220.40/988,830.60 = 160,584.40/x
  3. Step 3: Cross multiply
    659,220.40x = 988,830.60 × 160,584.40
  4. Step 4: Simplify right side
    659,220.40x = 158,790,768,602.64
  5. Step 5: Solve for x
    x = 158,790,768,602.64/659,220.40
  6. Step 6: Final answer
    x = 240,876.60

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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.