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Finding the Fourth Proportional to 391,598.02, 540,394.77 and 230,462.56

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Solution

The fourth proportional to 391,598.02, 540,394.77 and 230,462.56 is: 318,032.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,598.02 : 540,394.77 = 230,462.56 : x
  2. Step 2: Convert to fraction form
    391,598.02/540,394.77 = 230,462.56/x
  3. Step 3: Cross multiply
    391,598.02x = 540,394.77 × 230,462.56
  4. Step 4: Simplify right side
    391,598.02x = 124,540,762,104.81
  5. Step 5: Solve for x
    x = 124,540,762,104.81/391,598.02
  6. Step 6: Final answer
    x = 318,032.15

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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.