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Finding the Fourth Proportional to 529,492.23, 730,805.55 and 314,590.92

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Solution

The fourth proportional to 529,492.23, 730,805.55 and 314,590.92 is: 434,198.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,492.23 : 730,805.55 = 314,590.92 : x
  2. Step 2: Convert to fraction form
    529,492.23/730,805.55 = 314,590.92/x
  3. Step 3: Cross multiply
    529,492.23x = 730,805.55 × 314,590.92
  4. Step 4: Simplify right side
    529,492.23x = 229,904,790,315.61
  5. Step 5: Solve for x
    x = 229,904,790,315.61/529,492.23
  6. Step 6: Final answer
    x = 434,198.61

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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.