Home / 645,019.40-967,529.10-195,739.40

Finding the Fourth Proportional to 645,019.40, 967,529.10 and 195,739.40

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Solution

The fourth proportional to 645,019.40, 967,529.10 and 195,739.40 is: 293,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,019.40 : 967,529.10 = 195,739.40 : x
  2. Step 2: Convert to fraction form
    645,019.40/967,529.10 = 195,739.40/x
  3. Step 3: Cross multiply
    645,019.40x = 967,529.10 × 195,739.40
  4. Step 4: Simplify right side
    645,019.40x = 189,383,565,516.54
  5. Step 5: Solve for x
    x = 189,383,565,516.54/645,019.40
  6. Step 6: Final answer
    x = 293,609.10

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Half scale
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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.