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Finding the Fourth Proportional to 357,696.77, 493,621.35 and 196,562.21

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Solution

The fourth proportional to 357,696.77, 493,621.35 and 196,562.21 is: 271,255.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,696.77 : 493,621.35 = 196,562.21 : x
  2. Step 2: Convert to fraction form
    357,696.77/493,621.35 = 196,562.21/x
  3. Step 3: Cross multiply
    357,696.77x = 493,621.35 × 196,562.21
  4. Step 4: Simplify right side
    357,696.77x = 97,027,303,459.18
  5. Step 5: Solve for x
    x = 97,027,303,459.18/357,696.77
  6. Step 6: Final answer
    x = 271,255.74

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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.