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Finding the Fourth Proportional to 346,781.80, 520,172.70 and 222,365.80

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Solution

The fourth proportional to 346,781.80, 520,172.70 and 222,365.80 is: 333,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,781.80 : 520,172.70 = 222,365.80 : x
  2. Step 2: Convert to fraction form
    346,781.80/520,172.70 = 222,365.80/x
  3. Step 3: Cross multiply
    346,781.80x = 520,172.70 × 222,365.80
  4. Step 4: Simplify right side
    346,781.80x = 115,668,618,573.66
  5. Step 5: Solve for x
    x = 115,668,618,573.66/346,781.80
  6. Step 6: Final answer
    x = 333,548.70

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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.