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Finding the Fourth Proportional to 448,955.58, 619,571.75 and 245,019.61

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Solution

The fourth proportional to 448,955.58, 619,571.75 and 245,019.61 is: 338,134.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,955.58 : 619,571.75 = 245,019.61 : x
  2. Step 2: Convert to fraction form
    448,955.58/619,571.75 = 245,019.61/x
  3. Step 3: Cross multiply
    448,955.58x = 619,571.75 × 245,019.61
  4. Step 4: Simplify right side
    448,955.58x = 151,807,228,552.02
  5. Step 5: Solve for x
    x = 151,807,228,552.02/448,955.58
  6. Step 6: Final answer
    x = 338,134.18

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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.