Home / 819,786.30-1,131,307.10-457,233.64

Finding the Fourth Proportional to 819,786.30, 1,131,307.10 and 457,233.64

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Solution

The fourth proportional to 819,786.30, 1,131,307.10 and 457,233.64 is: 630,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,786.30 : 1,131,307.10 = 457,233.64 : x
  2. Step 2: Convert to fraction form
    819,786.30/1,131,307.10 = 457,233.64/x
  3. Step 3: Cross multiply
    819,786.30x = 1,131,307.10 × 457,233.64
  4. Step 4: Simplify right side
    819,786.30x = 517,271,663,290.84
  5. Step 5: Solve for x
    x = 517,271,663,290.84/819,786.30
  6. Step 6: Final answer
    x = 630,983.54

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Double scale
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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.