Home / 905,572.40-1,356,116.51-665,116.07

Finding the Fourth Proportional to 905,572.40, 1,356,116.51 and 665,116.07

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Solution

The fourth proportional to 905,572.40, 1,356,116.51 and 665,116.07 is: 996,027.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,572.40 : 1,356,116.51 = 665,116.07 : x
  2. Step 2: Convert to fraction form
    905,572.40/1,356,116.51 = 665,116.07/x
  3. Step 3: Cross multiply
    905,572.40x = 1,356,116.51 × 665,116.07
  4. Step 4: Simplify right side
    905,572.40x = 901,974,883,658.03
  5. Step 5: Solve for x
    x = 901,974,883,658.03/905,572.40
  6. Step 6: Final answer
    x = 996,027.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.