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Finding the Fourth Proportional to 636,065.19, 954,238.59 and 209,583.86

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Solution

The fourth proportional to 636,065.19, 954,238.59 and 209,583.86 is: 314,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,065.19 : 954,238.59 = 209,583.86 : x
  2. Step 2: Convert to fraction form
    636,065.19/954,238.59 = 209,583.86/x
  3. Step 3: Cross multiply
    636,065.19x = 954,238.59 × 209,583.86
  4. Step 4: Simplify right side
    636,065.19x = 199,993,002,281.96
  5. Step 5: Solve for x
    x = 199,993,002,281.96/636,065.19
  6. Step 6: Final answer
    x = 314,422.18

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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.