Home / 645,711.47-968,232.09-190,243.59

Finding the Fourth Proportional to 645,711.47, 968,232.09 and 190,243.59

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Solution

The fourth proportional to 645,711.47, 968,232.09 and 190,243.59 is: 285,266.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,711.47 : 968,232.09 = 190,243.59 : x
  2. Step 2: Convert to fraction form
    645,711.47/968,232.09 = 190,243.59/x
  3. Step 3: Cross multiply
    645,711.47x = 968,232.09 × 190,243.59
  4. Step 4: Simplify right side
    645,711.47x = 184,199,948,754.80
  5. Step 5: Solve for x
    x = 184,199,948,754.80/645,711.47
  6. Step 6: Final answer
    x = 285,266.65

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Double scale
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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.