Home / 290,785.23-400,862.98-192,503.73

Finding the Fourth Proportional to 290,785.23, 400,862.98 and 192,503.73

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Solution

The fourth proportional to 290,785.23, 400,862.98 and 192,503.73 is: 265,376.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,785.23 : 400,862.98 = 192,503.73 : x
  2. Step 2: Convert to fraction form
    290,785.23/400,862.98 = 192,503.73/x
  3. Step 3: Cross multiply
    290,785.23x = 400,862.98 × 192,503.73
  4. Step 4: Simplify right side
    290,785.23x = 77,167,616,711.38
  5. Step 5: Solve for x
    x = 77,167,616,711.38/290,785.23
  6. Step 6: Final answer
    x = 265,376.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.