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Finding the Fourth Proportional to 532,886.20, 799,329.30 and 322,415.80

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Solution

The fourth proportional to 532,886.20, 799,329.30 and 322,415.80 is: 483,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,886.20 : 799,329.30 = 322,415.80 : x
  2. Step 2: Convert to fraction form
    532,886.20/799,329.30 = 322,415.80/x
  3. Step 3: Cross multiply
    532,886.20x = 799,329.30 × 322,415.80
  4. Step 4: Simplify right side
    532,886.20x = 257,716,395,722.94
  5. Step 5: Solve for x
    x = 257,716,395,722.94/532,886.20
  6. Step 6: Final answer
    x = 483,623.70

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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.