Home / 621,548.96-857,731.33-345,902.19

Finding the Fourth Proportional to 621,548.96, 857,731.33 and 345,902.19

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Solution

The fourth proportional to 621,548.96, 857,731.33 and 345,902.19 is: 477,341.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,548.96 : 857,731.33 = 345,902.19 : x
  2. Step 2: Convert to fraction form
    621,548.96/857,731.33 = 345,902.19/x
  3. Step 3: Cross multiply
    621,548.96x = 857,731.33 × 345,902.19
  4. Step 4: Simplify right side
    621,548.96x = 296,691,144,613.86
  5. Step 5: Solve for x
    x = 296,691,144,613.86/621,548.96
  6. Step 6: Final answer
    x = 477,341.55

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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.