Home / 448,586.97-619,146.08-257,705.61

Finding the Fourth Proportional to 448,586.97, 619,146.08 and 257,705.61

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Solution

The fourth proportional to 448,586.97, 619,146.08 and 257,705.61 is: 355,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,586.97 : 619,146.08 = 257,705.61 : x
  2. Step 2: Convert to fraction form
    448,586.97/619,146.08 = 257,705.61/x
  3. Step 3: Cross multiply
    448,586.97x = 619,146.08 × 257,705.61
  4. Step 4: Simplify right side
    448,586.97x = 159,557,418,225.51
  5. Step 5: Solve for x
    x = 159,557,418,225.51/448,586.97
  6. Step 6: Final answer
    x = 355,688.93

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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.