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Finding the Fourth Proportional to 489,315.68, 732,936.72 and 369,668.96

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Solution

The fourth proportional to 489,315.68, 732,936.72 and 369,668.96 is: 553,720.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,315.68 : 732,936.72 = 369,668.96 : x
  2. Step 2: Convert to fraction form
    489,315.68/732,936.72 = 369,668.96/x
  3. Step 3: Cross multiply
    489,315.68x = 732,936.72 × 369,668.96
  4. Step 4: Simplify right side
    489,315.68x = 270,943,955,028.21
  5. Step 5: Solve for x
    x = 270,943,955,028.21/489,315.68
  6. Step 6: Final answer
    x = 553,720.16

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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.