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Finding the Fourth Proportional to 403,185.56, 556,164.63 and 252,020.12

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Solution

The fourth proportional to 403,185.56, 556,164.63 and 252,020.12 is: 347,643.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,185.56 : 556,164.63 = 252,020.12 : x
  2. Step 2: Convert to fraction form
    403,185.56/556,164.63 = 252,020.12/x
  3. Step 3: Cross multiply
    403,185.56x = 556,164.63 × 252,020.12
  4. Step 4: Simplify right side
    403,185.56x = 140,164,674,011.53
  5. Step 5: Solve for x
    x = 140,164,674,011.53/403,185.56
  6. Step 6: Final answer
    x = 347,643.09

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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.