Home / 457,933.38-686,010.69-257,643.06

Finding the Fourth Proportional to 457,933.38, 686,010.69 and 257,643.06

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Solution

The fourth proportional to 457,933.38, 686,010.69 and 257,643.06 is: 385,964.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,933.38 : 686,010.69 = 257,643.06 : x
  2. Step 2: Convert to fraction form
    457,933.38/686,010.69 = 257,643.06/x
  3. Step 3: Cross multiply
    457,933.38x = 686,010.69 × 257,643.06
  4. Step 4: Simplify right side
    457,933.38x = 176,745,893,364.31
  5. Step 5: Solve for x
    x = 176,745,893,364.31/457,933.38
  6. Step 6: Final answer
    x = 385,964.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.