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Finding the Fourth Proportional to 497,552.40, 746,636.40 and 261,064.80

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Solution

The fourth proportional to 497,552.40, 746,636.40 and 261,064.80 is: 391,758.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,552.40 : 746,636.40 = 261,064.80 : x
  2. Step 2: Convert to fraction form
    497,552.40/746,636.40 = 261,064.80/x
  3. Step 3: Cross multiply
    497,552.40x = 746,636.40 × 261,064.80
  4. Step 4: Simplify right side
    497,552.40x = 194,920,482,438.72
  5. Step 5: Solve for x
    x = 194,920,482,438.72/497,552.40
  6. Step 6: Final answer
    x = 391,758.70

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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.