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Finding the Fourth Proportional to 383,885.80, 575,828.70 and 368,333.80

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Solution

The fourth proportional to 383,885.80, 575,828.70 and 368,333.80 is: 552,500.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,885.80 : 575,828.70 = 368,333.80 : x
  2. Step 2: Convert to fraction form
    383,885.80/575,828.70 = 368,333.80/x
  3. Step 3: Cross multiply
    383,885.80x = 575,828.70 × 368,333.80
  4. Step 4: Simplify right side
    383,885.80x = 212,097,173,220.06
  5. Step 5: Solve for x
    x = 212,097,173,220.06/383,885.80
  6. Step 6: Final answer
    x = 552,500.70

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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.