Home / 686,145.94-1,029,219.01-187,509.94

Finding the Fourth Proportional to 686,145.94, 1,029,219.01 and 187,509.94

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Solution

The fourth proportional to 686,145.94, 1,029,219.01 and 187,509.94 is: 281,264.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,145.94 : 1,029,219.01 = 187,509.94 : x
  2. Step 2: Convert to fraction form
    686,145.94/1,029,219.01 = 187,509.94/x
  3. Step 3: Cross multiply
    686,145.94x = 1,029,219.01 × 187,509.94
  4. Step 4: Simplify right side
    686,145.94x = 192,988,791,770.14
  5. Step 5: Solve for x
    x = 192,988,791,770.14/686,145.94
  6. Step 6: Final answer
    x = 281,264.93

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1.5x scale

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.