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Finding the Fourth Proportional to 486,410.06, 671,052.80 and 325,009.46

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Solution

The fourth proportional to 486,410.06, 671,052.80 and 325,009.46 is: 448,384.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,410.06 : 671,052.80 = 325,009.46 : x
  2. Step 2: Convert to fraction form
    486,410.06/671,052.80 = 325,009.46/x
  3. Step 3: Cross multiply
    486,410.06x = 671,052.80 × 325,009.46
  4. Step 4: Simplify right side
    486,410.06x = 218,098,510,649.64
  5. Step 5: Solve for x
    x = 218,098,510,649.64/486,410.06
  6. Step 6: Final answer
    x = 448,384.04

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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.