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Finding the Fourth Proportional to 505,179.14, 697,147.22 and 344,315.22

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Solution

The fourth proportional to 505,179.14, 697,147.22 and 344,315.22 is: 475,155.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,179.14 : 697,147.22 = 344,315.22 : x
  2. Step 2: Convert to fraction form
    505,179.14/697,147.22 = 344,315.22/x
  3. Step 3: Cross multiply
    505,179.14x = 697,147.22 × 344,315.22
  4. Step 4: Simplify right side
    505,179.14x = 240,038,398,426.69
  5. Step 5: Solve for x
    x = 240,038,398,426.69/505,179.14
  6. Step 6: Final answer
    x = 475,155.01

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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.