Home / 445,923.54-668,987.49-193,246.45

Finding the Fourth Proportional to 445,923.54, 668,987.49 and 193,246.45

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Solution

The fourth proportional to 445,923.54, 668,987.49 and 193,246.45 is: 289,913.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,923.54 : 668,987.49 = 193,246.45 : x
  2. Step 2: Convert to fraction form
    445,923.54/668,987.49 = 193,246.45/x
  3. Step 3: Cross multiply
    445,923.54x = 668,987.49 × 193,246.45
  4. Step 4: Simplify right side
    445,923.54x = 129,279,457,536.91
  5. Step 5: Solve for x
    x = 129,279,457,536.91/445,923.54
  6. Step 6: Final answer
    x = 289,913.96

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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.