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Finding the Fourth Proportional to 460,379.94, 690,568.29 and 207,364.02

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Solution

The fourth proportional to 460,379.94, 690,568.29 and 207,364.02 is: 311,045.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,379.94 : 690,568.29 = 207,364.02 : x
  2. Step 2: Convert to fraction form
    460,379.94/690,568.29 = 207,364.02/x
  3. Step 3: Cross multiply
    460,379.94x = 690,568.29 × 207,364.02
  4. Step 4: Simplify right side
    460,379.94x = 143,199,016,698.93
  5. Step 5: Solve for x
    x = 143,199,016,698.93/460,379.94
  6. Step 6: Final answer
    x = 311,045.30

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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.