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Finding the Fourth Proportional to 529,528.32, 730,753.56 and 287,810.91

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Solution

The fourth proportional to 529,528.32, 730,753.56 and 287,810.91 is: 397,181.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,528.32 : 730,753.56 = 287,810.91 : x
  2. Step 2: Convert to fraction form
    529,528.32/730,753.56 = 287,810.91/x
  3. Step 3: Cross multiply
    529,528.32x = 730,753.56 × 287,810.91
  4. Step 4: Simplify right side
    529,528.32x = 210,318,847,089.34
  5. Step 5: Solve for x
    x = 210,318,847,089.34/529,528.32
  6. Step 6: Final answer
    x = 397,181.49

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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.