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Finding the Fourth Proportional to 348,468.60, 522,165.30 and 259,303.80

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Solution

The fourth proportional to 348,468.60, 522,165.30 and 259,303.80 is: 388,555.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,468.60 : 522,165.30 = 259,303.80 : x
  2. Step 2: Convert to fraction form
    348,468.60/522,165.30 = 259,303.80/x
  3. Step 3: Cross multiply
    348,468.60x = 522,165.30 × 259,303.80
  4. Step 4: Simplify right side
    348,468.60x = 135,399,446,518.14
  5. Step 5: Solve for x
    x = 135,399,446,518.14/348,468.60
  6. Step 6: Final answer
    x = 388,555.66

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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.