Home / 403,523.79-556,844.88-231,318.30

Finding the Fourth Proportional to 403,523.79, 556,844.88 and 231,318.30

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Solution

The fourth proportional to 403,523.79, 556,844.88 and 231,318.30 is: 319,208.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,523.79 : 556,844.88 = 231,318.30 : x
  2. Step 2: Convert to fraction form
    403,523.79/556,844.88 = 231,318.30/x
  3. Step 3: Cross multiply
    403,523.79x = 556,844.88 × 231,318.30
  4. Step 4: Simplify right side
    403,523.79x = 128,808,409,527.50
  5. Step 5: Solve for x
    x = 128,808,409,527.50/403,523.79
  6. Step 6: Final answer
    x = 319,208.96

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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.