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Finding the Fourth Proportional to 577,620.60, 865,847.70 and 262,303.80

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Solution

The fourth proportional to 577,620.60, 865,847.70 and 262,303.80 is: 393,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,620.60 : 865,847.70 = 262,303.80 : x
  2. Step 2: Convert to fraction form
    577,620.60/865,847.70 = 262,303.80/x
  3. Step 3: Cross multiply
    577,620.60x = 865,847.70 × 262,303.80
  4. Step 4: Simplify right side
    577,620.60x = 227,115,141,931.26
  5. Step 5: Solve for x
    x = 227,115,141,931.26/577,620.60
  6. Step 6: Final answer
    x = 393,190.86

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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.