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Finding the Fourth Proportional to 383,848.80, 575,254.80 and 339,266.40

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Solution

The fourth proportional to 383,848.80, 575,254.80 and 339,266.40 is: 508,441.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,848.80 : 575,254.80 = 339,266.40 : x
  2. Step 2: Convert to fraction form
    383,848.80/575,254.80 = 339,266.40/x
  3. Step 3: Cross multiply
    383,848.80x = 575,254.80 × 339,266.40
  4. Step 4: Simplify right side
    383,848.80x = 195,164,625,078.72
  5. Step 5: Solve for x
    x = 195,164,625,078.72/383,848.80
  6. Step 6: Final answer
    x = 508,441.41

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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.