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Finding the Fourth Proportional to 529,416.30, 794,124.45 and 213,710.70

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Solution

The fourth proportional to 529,416.30, 794,124.45 and 213,710.70 is: 320,566.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,416.30 : 794,124.45 = 213,710.70 : x
  2. Step 2: Convert to fraction form
    529,416.30/794,124.45 = 213,710.70/x
  3. Step 3: Cross multiply
    529,416.30x = 794,124.45 × 213,710.70
  4. Step 4: Simplify right side
    529,416.30x = 169,712,892,096.62
  5. Step 5: Solve for x
    x = 169,712,892,096.62/529,416.30
  6. Step 6: Final answer
    x = 320,566.05

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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.