Home / 627,497.90-865,628.30-409,834.09

Finding the Fourth Proportional to 627,497.90, 865,628.30 and 409,834.09

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Solution

The fourth proportional to 627,497.90, 865,628.30 and 409,834.09 is: 565,362.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,497.90 : 865,628.30 = 409,834.09 : x
  2. Step 2: Convert to fraction form
    627,497.90/865,628.30 = 409,834.09/x
  3. Step 3: Cross multiply
    627,497.90x = 865,628.30 × 409,834.09
  4. Step 4: Simplify right side
    627,497.90x = 354,763,988,715.37
  5. Step 5: Solve for x
    x = 354,763,988,715.37/627,497.90
  6. Step 6: Final answer
    x = 565,362.83

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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.