Home / 645,964.40-968,946.60-196,681.70

Finding the Fourth Proportional to 645,964.40, 968,946.60 and 196,681.70

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Solution

The fourth proportional to 645,964.40, 968,946.60 and 196,681.70 is: 295,022.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,964.40 : 968,946.60 = 196,681.70 : x
  2. Step 2: Convert to fraction form
    645,964.40/968,946.60 = 196,681.70/x
  3. Step 3: Cross multiply
    645,964.40x = 968,946.60 × 196,681.70
  4. Step 4: Simplify right side
    645,964.40x = 190,574,064,497.22
  5. Step 5: Solve for x
    x = 190,574,064,497.22/645,964.40
  6. Step 6: Final answer
    x = 295,022.55

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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.