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Finding the Fourth Proportional to 536,467.80, 803,535.30 and 326,515.80

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Solution

The fourth proportional to 536,467.80, 803,535.30 and 326,515.80 is: 489,063.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,467.80 : 803,535.30 = 326,515.80 : x
  2. Step 2: Convert to fraction form
    536,467.80/803,535.30 = 326,515.80/x
  3. Step 3: Cross multiply
    536,467.80x = 803,535.30 × 326,515.80
  4. Step 4: Simplify right side
    536,467.80x = 262,366,971,307.74
  5. Step 5: Solve for x
    x = 262,366,971,307.74/536,467.80
  6. Step 6: Final answer
    x = 489,063.78

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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.