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Finding the Fourth Proportional to 503,643.68, 754,990.62 and 250,685

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Solution

The fourth proportional to 503,643.68, 754,990.62 and 250,685 is: 375,791.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,643.68 : 754,990.62 = 250,685 : x
  2. Step 2: Convert to fraction form
    503,643.68/754,990.62 = 250,685/x
  3. Step 3: Cross multiply
    503,643.68x = 754,990.62 × 250,685
  4. Step 4: Simplify right side
    503,643.68x = 189,264,823,574.70
  5. Step 5: Solve for x
    x = 189,264,823,574.70/503,643.68
  6. Step 6: Final answer
    x = 375,791.12

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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.