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Finding the Fourth Proportional to 529,037.71, 730,188.20 and 347,766.32

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Solution

The fourth proportional to 529,037.71, 730,188.20 and 347,766.32 is: 479,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,037.71 : 730,188.20 = 347,766.32 : x
  2. Step 2: Convert to fraction form
    529,037.71/730,188.20 = 347,766.32/x
  3. Step 3: Cross multiply
    529,037.71x = 730,188.20 × 347,766.32
  4. Step 4: Simplify right side
    529,037.71x = 253,934,861,482.59
  5. Step 5: Solve for x
    x = 253,934,861,482.59/529,037.71
  6. Step 6: Final answer
    x = 479,993.88

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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.