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Finding the Fourth Proportional to 658,844.40, 988,266.60 and 160,208.40

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Solution

The fourth proportional to 658,844.40, 988,266.60 and 160,208.40 is: 240,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,844.40 : 988,266.60 = 160,208.40 : x
  2. Step 2: Convert to fraction form
    658,844.40/988,266.60 = 160,208.40/x
  3. Step 3: Cross multiply
    658,844.40x = 988,266.60 × 160,208.40
  4. Step 4: Simplify right side
    658,844.40x = 158,328,610,759.44
  5. Step 5: Solve for x
    x = 158,328,610,759.44/658,844.40
  6. Step 6: Final answer
    x = 240,312.60

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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.