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Finding the Fourth Proportional to 341,654.89, 512,037.81 and 139,014.84

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Solution

The fourth proportional to 341,654.89, 512,037.81 and 139,014.84 is: 208,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,654.89 : 512,037.81 = 139,014.84 : x
  2. Step 2: Convert to fraction form
    341,654.89/512,037.81 = 139,014.84/x
  3. Step 3: Cross multiply
    341,654.89x = 512,037.81 × 139,014.84
  4. Step 4: Simplify right side
    341,654.89x = 71,180,854,231.10
  5. Step 5: Solve for x
    x = 71,180,854,231.10/341,654.89
  6. Step 6: Final answer
    x = 208,341.39

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1.5x scale

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.