Home / 645,507.07-968,225.57-196,192.91

Finding the Fourth Proportional to 645,507.07, 968,225.57 and 196,192.91

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Solution

The fourth proportional to 645,507.07, 968,225.57 and 196,192.91 is: 294,278.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,507.07 : 968,225.57 = 196,192.91 : x
  2. Step 2: Convert to fraction form
    645,507.07/968,225.57 = 196,192.91/x
  3. Step 3: Cross multiply
    645,507.07x = 968,225.57 × 196,192.91
  4. Step 4: Simplify right side
    645,507.07x = 189,958,989,923.46
  5. Step 5: Solve for x
    x = 189,958,989,923.46/645,507.07
  6. Step 6: Final answer
    x = 294,278.71

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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.