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Finding the Fourth Proportional to 383,530.34, 529,077.22 and 292,728.74

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Solution

The fourth proportional to 383,530.34, 529,077.22 and 292,728.74 is: 403,817.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,530.34 : 529,077.22 = 292,728.74 : x
  2. Step 2: Convert to fraction form
    383,530.34/529,077.22 = 292,728.74/x
  3. Step 3: Cross multiply
    383,530.34x = 529,077.22 × 292,728.74
  4. Step 4: Simplify right side
    383,530.34x = 154,876,104,596.10
  5. Step 5: Solve for x
    x = 154,876,104,596.10/383,530.34
  6. Step 6: Final answer
    x = 403,817.08

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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.