Home / 736,138.20-1,015,864.61-413,849.73

Finding the Fourth Proportional to 736,138.20, 1,015,864.61 and 413,849.73

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Solution

The fourth proportional to 736,138.20, 1,015,864.61 and 413,849.73 is: 571,109.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,138.20 : 1,015,864.61 = 413,849.73 : x
  2. Step 2: Convert to fraction form
    736,138.20/1,015,864.61 = 413,849.73/x
  3. Step 3: Cross multiply
    736,138.20x = 1,015,864.61 × 413,849.73
  4. Step 4: Simplify right side
    736,138.20x = 420,415,292,495.81
  5. Step 5: Solve for x
    x = 420,415,292,495.81/736,138.20
  6. Step 6: Final answer
    x = 571,109.19

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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.