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Finding the Fourth Proportional to 505,583.62, 697,701.10 and 279,224.26

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Solution

The fourth proportional to 505,583.62, 697,701.10 and 279,224.26 is: 385,327.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,583.62 : 697,701.10 = 279,224.26 : x
  2. Step 2: Convert to fraction form
    505,583.62/697,701.10 = 279,224.26/x
  3. Step 3: Cross multiply
    505,583.62x = 697,701.10 × 279,224.26
  4. Step 4: Simplify right side
    505,583.62x = 194,815,073,348.69
  5. Step 5: Solve for x
    x = 194,815,073,348.69/505,583.62
  6. Step 6: Final answer
    x = 385,327.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.