Home / 697,911.40-963,365.21-422,283.46

Finding the Fourth Proportional to 697,911.40, 963,365.21 and 422,283.46

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Solution

The fourth proportional to 697,911.40, 963,365.21 and 422,283.46 is: 582,900.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,911.40 : 963,365.21 = 422,283.46 : x
  2. Step 2: Convert to fraction form
    697,911.40/963,365.21 = 422,283.46/x
  3. Step 3: Cross multiply
    697,911.40x = 963,365.21 × 422,283.46
  4. Step 4: Simplify right side
    697,911.40x = 406,813,194,122.43
  5. Step 5: Solve for x
    x = 406,813,194,122.43/697,911.40
  6. Step 6: Final answer
    x = 582,900.92

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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.