Home / 621,570.18-857,523.96-349,575.72

Finding the Fourth Proportional to 621,570.18, 857,523.96 and 349,575.72

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Solution

The fourth proportional to 621,570.18, 857,523.96 and 349,575.72 is: 482,277.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,570.18 : 857,523.96 = 349,575.72 : x
  2. Step 2: Convert to fraction form
    621,570.18/857,523.96 = 349,575.72/x
  3. Step 3: Cross multiply
    621,570.18x = 857,523.96 × 349,575.72
  4. Step 4: Simplify right side
    621,570.18x = 299,769,555,734.25
  5. Step 5: Solve for x
    x = 299,769,555,734.25/621,570.18
  6. Step 6: Final answer
    x = 482,277.89

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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.