Home / 645,904.20-968,744.52-196,516.20

Finding the Fourth Proportional to 645,904.20, 968,744.52 and 196,516.20

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Solution

The fourth proportional to 645,904.20, 968,744.52 and 196,516.20 is: 294,740.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,904.20 : 968,744.52 = 196,516.20 : x
  2. Step 2: Convert to fraction form
    645,904.20/968,744.52 = 196,516.20/x
  3. Step 3: Cross multiply
    645,904.20x = 968,744.52 × 196,516.20
  4. Step 4: Simplify right side
    645,904.20x = 190,373,991,841.22
  5. Step 5: Solve for x
    x = 190,373,991,841.22/645,904.20
  6. Step 6: Final answer
    x = 294,740.29

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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.