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Finding the Fourth Proportional to 518,328.20, 777,597.93 and 293,788.91

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Solution

The fourth proportional to 518,328.20, 777,597.93 and 293,788.91 is: 440,743.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,328.20 : 777,597.93 = 293,788.91 : x
  2. Step 2: Convert to fraction form
    518,328.20/777,597.93 = 293,788.91/x
  3. Step 3: Cross multiply
    518,328.20x = 777,597.93 × 293,788.91
  4. Step 4: Simplify right side
    518,328.20x = 228,449,648,272.96
  5. Step 5: Solve for x
    x = 228,449,648,272.96/518,328.20
  6. Step 6: Final answer
    x = 440,743.24

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1.5x scale

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.