Home / 448,786.27-619,263.71-257,799.61

Finding the Fourth Proportional to 448,786.27, 619,263.71 and 257,799.61

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Solution

The fourth proportional to 448,786.27, 619,263.71 and 257,799.61 is: 355,728.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,786.27 : 619,263.71 = 257,799.61 : x
  2. Step 2: Convert to fraction form
    448,786.27/619,263.71 = 257,799.61/x
  3. Step 3: Cross multiply
    448,786.27x = 619,263.71 × 257,799.61
  4. Step 4: Simplify right side
    448,786.27x = 159,645,939,828.84
  5. Step 5: Solve for x
    x = 159,645,939,828.84/448,786.27
  6. Step 6: Final answer
    x = 355,728.22

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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.