Home / 505,171.13-697,136.17-344,307.20

Finding the Fourth Proportional to 505,171.13, 697,136.17 and 344,307.20

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Solution

The fourth proportional to 505,171.13, 697,136.17 and 344,307.20 is: 475,143.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,171.13 : 697,136.17 = 344,307.20 : x
  2. Step 2: Convert to fraction form
    505,171.13/697,136.17 = 344,307.20/x
  3. Step 3: Cross multiply
    505,171.13x = 697,136.17 × 344,307.20
  4. Step 4: Simplify right side
    505,171.13x = 240,029,002,711.42
  5. Step 5: Solve for x
    x = 240,029,002,711.42/505,171.13
  6. Step 6: Final answer
    x = 475,143.94

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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.