Home / 1,235,503.28-1,853,393.20-393,859.76

Finding the Fourth Proportional to 1,235,503.28, 1,853,393.20 and 393,859.76

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Solution

The fourth proportional to 1,235,503.28, 1,853,393.20 and 393,859.76 is: 590,833.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,503.28 : 1,853,393.20 = 393,859.76 : x
  2. Step 2: Convert to fraction form
    1,235,503.28/1,853,393.20 = 393,859.76/x
  3. Step 3: Cross multiply
    1,235,503.28x = 1,853,393.20 × 393,859.76
  4. Step 4: Simplify right side
    1,235,503.28x = 729,977,000,937.63
  5. Step 5: Solve for x
    x = 729,977,000,937.63/1,235,503.28
  6. Step 6: Final answer
    x = 590,833.72

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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.