Home / 445,935.43-669,005.31-193,258.30

Finding the Fourth Proportional to 445,935.43, 669,005.31 and 193,258.30

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Solution

The fourth proportional to 445,935.43, 669,005.31 and 193,258.30 is: 289,931.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,935.43 : 669,005.31 = 193,258.30 : x
  2. Step 2: Convert to fraction form
    445,935.43/669,005.31 = 193,258.30/x
  3. Step 3: Cross multiply
    445,935.43x = 669,005.31 × 193,258.30
  4. Step 4: Simplify right side
    445,935.43x = 129,290,828,901.57
  5. Step 5: Solve for x
    x = 129,290,828,901.57/445,935.43
  6. Step 6: Final answer
    x = 289,931.73

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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.