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Finding the Fourth Proportional to 371,318.69, 556,479.12 and 202,586.17

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Solution

The fourth proportional to 371,318.69, 556,479.12 and 202,586.17 is: 303,607.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,318.69 : 556,479.12 = 202,586.17 : x
  2. Step 2: Convert to fraction form
    371,318.69/556,479.12 = 202,586.17/x
  3. Step 3: Cross multiply
    371,318.69x = 556,479.12 × 202,586.17
  4. Step 4: Simplify right side
    371,318.69x = 112,734,973,605.77
  5. Step 5: Solve for x
    x = 112,734,973,605.77/371,318.69
  6. Step 6: Final answer
    x = 303,607.06

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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.