Home / 819,707.29-1,131,193.83-457,131.54

Finding the Fourth Proportional to 819,707.29, 1,131,193.83 and 457,131.54

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Solution

The fourth proportional to 819,707.29, 1,131,193.83 and 457,131.54 is: 630,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,707.29 : 1,131,193.83 = 457,131.54 : x
  2. Step 2: Convert to fraction form
    819,707.29/1,131,193.83 = 457,131.54/x
  3. Step 3: Cross multiply
    819,707.29x = 1,131,193.83 × 457,131.54
  4. Step 4: Simplify right side
    819,707.29x = 517,104,377,546.40
  5. Step 5: Solve for x
    x = 517,104,377,546.40/819,707.29
  6. Step 6: Final answer
    x = 630,840.28

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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.