Home / 306,925.38-423,578.30-186,071.76

Finding the Fourth Proportional to 306,925.38, 423,578.30 and 186,071.76

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Solution

The fourth proportional to 306,925.38, 423,578.30 and 186,071.76 is: 256,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,925.38 : 423,578.30 = 186,071.76 : x
  2. Step 2: Convert to fraction form
    306,925.38/423,578.30 = 186,071.76/x
  3. Step 3: Cross multiply
    306,925.38x = 423,578.30 × 186,071.76
  4. Step 4: Simplify right side
    306,925.38x = 78,815,958,848.45
  5. Step 5: Solve for x
    x = 78,815,958,848.45/306,925.38
  6. Step 6: Final answer
    x = 256,791.92

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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.