Home / 401,183.28-553,693.92-256,051.76

Finding the Fourth Proportional to 401,183.28, 553,693.92 and 256,051.76

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Solution

The fourth proportional to 401,183.28, 553,693.92 and 256,051.76 is: 353,390.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,183.28 : 553,693.92 = 256,051.76 : x
  2. Step 2: Convert to fraction form
    401,183.28/553,693.92 = 256,051.76/x
  3. Step 3: Cross multiply
    401,183.28x = 553,693.92 × 256,051.76
  4. Step 4: Simplify right side
    401,183.28x = 141,774,302,717.30
  5. Step 5: Solve for x
    x = 141,774,302,717.30/401,183.28
  6. Step 6: Final answer
    x = 353,390.36

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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.