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Finding the Fourth Proportional to 529,420.30, 794,130.45 and 213,714.70

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Solution

The fourth proportional to 529,420.30, 794,130.45 and 213,714.70 is: 320,572.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,420.30 : 794,130.45 = 213,714.70 : x
  2. Step 2: Convert to fraction form
    529,420.30/794,130.45 = 213,714.70/x
  3. Step 3: Cross multiply
    529,420.30x = 794,130.45 × 213,714.70
  4. Step 4: Simplify right side
    529,420.30x = 169,717,350,882.62
  5. Step 5: Solve for x
    x = 169,717,350,882.62/529,420.30
  6. Step 6: Final answer
    x = 320,572.05

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Similar ratio
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1.5x scale

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.