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Finding the Fourth Proportional to 505,419.02, 697,185.87 and 326,571.02

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Solution

The fourth proportional to 505,419.02, 697,185.87 and 326,571.02 is: 450,479.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,419.02 : 697,185.87 = 326,571.02 : x
  2. Step 2: Convert to fraction form
    505,419.02/697,185.87 = 326,571.02/x
  3. Step 3: Cross multiply
    505,419.02x = 697,185.87 × 326,571.02
  4. Step 4: Simplify right side
    505,419.02x = 227,680,700,695.49
  5. Step 5: Solve for x
    x = 227,680,700,695.49/505,419.02
  6. Step 6: Final answer
    x = 450,479.09

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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.