Home / 935,081.64-1,290,418.58-505,360.76

Finding the Fourth Proportional to 935,081.64, 1,290,418.58 and 505,360.76

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Solution

The fourth proportional to 935,081.64, 1,290,418.58 and 505,360.76 is: 697,401.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,081.64 : 1,290,418.58 = 505,360.76 : x
  2. Step 2: Convert to fraction form
    935,081.64/1,290,418.58 = 505,360.76/x
  3. Step 3: Cross multiply
    935,081.64x = 1,290,418.58 × 505,360.76
  4. Step 4: Simplify right side
    935,081.64x = 652,126,914,306.92
  5. Step 5: Solve for x
    x = 652,126,914,306.92/935,081.64
  6. Step 6: Final answer
    x = 697,401.05

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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.