Home / 819,654.96-1,131,128.78-457,101.74

Finding the Fourth Proportional to 819,654.96, 1,131,128.78 and 457,101.74

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Solution

The fourth proportional to 819,654.96, 1,131,128.78 and 457,101.74 is: 630,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,654.96 : 1,131,128.78 = 457,101.74 : x
  2. Step 2: Convert to fraction form
    819,654.96/1,131,128.78 = 457,101.74/x
  3. Step 3: Cross multiply
    819,654.96x = 1,131,128.78 × 457,101.74
  4. Step 4: Simplify right side
    819,654.96x = 517,040,933,502.08
  5. Step 5: Solve for x
    x = 517,040,933,502.08/819,654.96
  6. Step 6: Final answer
    x = 630,803.15

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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.