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Finding the Fourth Proportional to 635,936.40, 953,904.60 and 162,658.80

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Solution

The fourth proportional to 635,936.40, 953,904.60 and 162,658.80 is: 243,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,936.40 : 953,904.60 = 162,658.80 : x
  2. Step 2: Convert to fraction form
    635,936.40/953,904.60 = 162,658.80/x
  3. Step 3: Cross multiply
    635,936.40x = 953,904.60 × 162,658.80
  4. Step 4: Simplify right side
    635,936.40x = 155,160,977,550.48
  5. Step 5: Solve for x
    x = 155,160,977,550.48/635,936.40
  6. Step 6: Final answer
    x = 243,988.20

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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.