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Finding the Fourth Proportional to 486,089.65, 729,169.52 and 186,570.23

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Solution

The fourth proportional to 486,089.65, 729,169.52 and 186,570.23 is: 279,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,089.65 : 729,169.52 = 186,570.23 : x
  2. Step 2: Convert to fraction form
    486,089.65/729,169.52 = 186,570.23/x
  3. Step 3: Cross multiply
    486,089.65x = 729,169.52 × 186,570.23
  4. Step 4: Simplify right side
    486,089.65x = 136,041,325,733.64
  5. Step 5: Solve for x
    x = 136,041,325,733.64/486,089.65
  6. Step 6: Final answer
    x = 279,868.80

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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.