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Finding the Fourth Proportional to 534,860.86, 800,482.92 and 520,467.76

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Solution

The fourth proportional to 534,860.86, 800,482.92 and 520,467.76 is: 778,941.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,860.86 : 800,482.92 = 520,467.76 : x
  2. Step 2: Convert to fraction form
    534,860.86/800,482.92 = 520,467.76/x
  3. Step 3: Cross multiply
    534,860.86x = 800,482.92 × 520,467.76
  4. Step 4: Simplify right side
    534,860.86x = 416,625,552,290.66
  5. Step 5: Solve for x
    x = 416,625,552,290.66/534,860.86
  6. Step 6: Final answer
    x = 778,941.93

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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.