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Finding the Fourth Proportional to 505,057.58, 697,098.73 and 290,322.20

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Solution

The fourth proportional to 505,057.58, 697,098.73 and 290,322.20 is: 400,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,057.58 : 697,098.73 = 290,322.20 : x
  2. Step 2: Convert to fraction form
    505,057.58/697,098.73 = 290,322.20/x
  3. Step 3: Cross multiply
    505,057.58x = 697,098.73 × 290,322.20
  4. Step 4: Simplify right side
    505,057.58x = 202,383,237,328.04
  5. Step 5: Solve for x
    x = 202,383,237,328.04/505,057.58
  6. Step 6: Final answer
    x = 400,713.20

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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.