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Finding the Fourth Proportional to 529,528.35, 730,753.56 and 287,810.86

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Solution

The fourth proportional to 529,528.35, 730,753.56 and 287,810.86 is: 397,181.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,528.35 : 730,753.56 = 287,810.86 : x
  2. Step 2: Convert to fraction form
    529,528.35/730,753.56 = 287,810.86/x
  3. Step 3: Cross multiply
    529,528.35x = 730,753.56 × 287,810.86
  4. Step 4: Simplify right side
    529,528.35x = 210,318,810,551.66
  5. Step 5: Solve for x
    x = 210,318,810,551.66/529,528.35
  6. Step 6: Final answer
    x = 397,181.40

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1.5x scale

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.