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Finding the Fourth Proportional to 357,775.45, 493,741.96 and 196,636.21

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Solution

The fourth proportional to 357,775.45, 493,741.96 and 196,636.21 is: 271,364.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,775.45 : 493,741.96 = 196,636.21 : x
  2. Step 2: Convert to fraction form
    357,775.45/493,741.96 = 196,636.21/x
  3. Step 3: Cross multiply
    357,775.45x = 493,741.96 × 196,636.21
  4. Step 4: Simplify right side
    357,775.45x = 97,087,547,732.37
  5. Step 5: Solve for x
    x = 97,087,547,732.37/357,775.45
  6. Step 6: Final answer
    x = 271,364.48

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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.