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Finding the Fourth Proportional to 393,818.10, 589,852.35 and 341,330.10

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Solution

The fourth proportional to 393,818.10, 589,852.35 and 341,330.10 is: 511,236.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,818.10 : 589,852.35 = 341,330.10 : x
  2. Step 2: Convert to fraction form
    393,818.10/589,852.35 = 341,330.10/x
  3. Step 3: Cross multiply
    393,818.10x = 589,852.35 × 341,330.10
  4. Step 4: Simplify right side
    393,818.10x = 201,334,361,610.74
  5. Step 5: Solve for x
    x = 201,334,361,610.74/393,818.10
  6. Step 6: Final answer
    x = 511,236.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.