Home / 819,782.29-1,131,301.57-457,229.64

Finding the Fourth Proportional to 819,782.29, 1,131,301.57 and 457,229.64

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Solution

The fourth proportional to 819,782.29, 1,131,301.57 and 457,229.64 is: 630,978.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,782.29 : 1,131,301.57 = 457,229.64 : x
  2. Step 2: Convert to fraction form
    819,782.29/1,131,301.57 = 457,229.64/x
  3. Step 3: Cross multiply
    819,782.29x = 1,131,301.57 × 457,229.64
  4. Step 4: Simplify right side
    819,782.29x = 517,264,605,922.71
  5. Step 5: Solve for x
    x = 517,264,605,922.71/819,782.29
  6. Step 6: Final answer
    x = 630,978.02

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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.