Home / 935,285.11-1,290,692.88-505,565.23

Finding the Fourth Proportional to 935,285.11, 1,290,692.88 and 505,565.23

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Solution

The fourth proportional to 935,285.11, 1,290,692.88 and 505,565.23 is: 697,679.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,285.11 : 1,290,692.88 = 505,565.23 : x
  2. Step 2: Convert to fraction form
    935,285.11/1,290,692.88 = 505,565.23/x
  3. Step 3: Cross multiply
    935,285.11x = 1,290,692.88 × 505,565.23
  4. Step 4: Simplify right side
    935,285.11x = 652,529,442,736.56
  5. Step 5: Solve for x
    x = 652,529,442,736.56/935,285.11
  6. Step 6: Final answer
    x = 697,679.71

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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.