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Finding the Fourth Proportional to 529,672.80, 793,342.80 and 459,688.80

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Solution

The fourth proportional to 529,672.80, 793,342.80 and 459,688.80 is: 688,520.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,672.80 : 793,342.80 = 459,688.80 : x
  2. Step 2: Convert to fraction form
    529,672.80/793,342.80 = 459,688.80/x
  3. Step 3: Cross multiply
    529,672.80x = 793,342.80 × 459,688.80
  4. Step 4: Simplify right side
    529,672.80x = 364,690,799,720.64
  5. Step 5: Solve for x
    x = 364,690,799,720.64/529,672.80
  6. Step 6: Final answer
    x = 688,520.91

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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.