Home / 401,171.16-553,677.18-256,039.56

Finding the Fourth Proportional to 401,171.16, 553,677.18 and 256,039.56

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Solution

The fourth proportional to 401,171.16, 553,677.18 and 256,039.56 is: 353,373.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,171.16 : 553,677.18 = 256,039.56 : x
  2. Step 2: Convert to fraction form
    401,171.16/553,677.18 = 256,039.56/x
  3. Step 3: Cross multiply
    401,171.16x = 553,677.18 × 256,039.56
  4. Step 4: Simplify right side
    401,171.16x = 141,763,261,549.24
  5. Step 5: Solve for x
    x = 141,763,261,549.24/401,171.16
  6. Step 6: Final answer
    x = 353,373.51

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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.