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Finding the Fourth Proportional to 352,915.80, 529,373.70 and 329,587.80

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Solution

The fourth proportional to 352,915.80, 529,373.70 and 329,587.80 is: 494,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,915.80 : 529,373.70 = 329,587.80 : x
  2. Step 2: Convert to fraction form
    352,915.80/529,373.70 = 329,587.80/x
  3. Step 3: Cross multiply
    352,915.80x = 529,373.70 × 329,587.80
  4. Step 4: Simplify right side
    352,915.80x = 174,475,113,160.86
  5. Step 5: Solve for x
    x = 174,475,113,160.86/352,915.80
  6. Step 6: Final answer
    x = 494,381.70

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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.