Home / 635,921.40-953,882.10-162,643.80

Finding the Fourth Proportional to 635,921.40, 953,882.10 and 162,643.80

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Solution

The fourth proportional to 635,921.40, 953,882.10 and 162,643.80 is: 243,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,921.40 : 953,882.10 = 162,643.80 : x
  2. Step 2: Convert to fraction form
    635,921.40/953,882.10 = 162,643.80/x
  3. Step 3: Cross multiply
    635,921.40x = 953,882.10 × 162,643.80
  4. Step 4: Simplify right side
    635,921.40x = 155,143,009,495.98
  5. Step 5: Solve for x
    x = 155,143,009,495.98/635,921.40
  6. Step 6: Final answer
    x = 243,965.70

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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.