Home / 803,728.11-1,109,144.36-454,862.19

Finding the Fourth Proportional to 803,728.11, 1,109,144.36 and 454,862.19

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Solution

The fourth proportional to 803,728.11, 1,109,144.36 and 454,862.19 is: 627,709.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,728.11 : 1,109,144.36 = 454,862.19 : x
  2. Step 2: Convert to fraction form
    803,728.11/1,109,144.36 = 454,862.19/x
  3. Step 3: Cross multiply
    803,728.11x = 1,109,144.36 × 454,862.19
  4. Step 4: Simplify right side
    803,728.11x = 504,507,832,615.75
  5. Step 5: Solve for x
    x = 504,507,832,615.75/803,728.11
  6. Step 6: Final answer
    x = 627,709.58

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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.