Home / 912,936.40-1,369,404.60-239,016.40

Finding the Fourth Proportional to 912,936.40, 1,369,404.60 and 239,016.40

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Solution

The fourth proportional to 912,936.40, 1,369,404.60 and 239,016.40 is: 358,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,936.40 : 1,369,404.60 = 239,016.40 : x
  2. Step 2: Convert to fraction form
    912,936.40/1,369,404.60 = 239,016.40/x
  3. Step 3: Cross multiply
    912,936.40x = 1,369,404.60 × 239,016.40
  4. Step 4: Simplify right side
    912,936.40x = 327,310,157,635.44
  5. Step 5: Solve for x
    x = 327,310,157,635.44/912,936.40
  6. Step 6: Final answer
    x = 358,524.60

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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.