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Finding the Fourth Proportional to 427,671.66, 590,135.19 and 236,673.66

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Solution

The fourth proportional to 427,671.66, 590,135.19 and 236,673.66 is: 326,581.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,671.66 : 590,135.19 = 236,673.66 : x
  2. Step 2: Convert to fraction form
    427,671.66/590,135.19 = 236,673.66/x
  3. Step 3: Cross multiply
    427,671.66x = 590,135.19 × 236,673.66
  4. Step 4: Simplify right side
    427,671.66x = 139,669,455,312.10
  5. Step 5: Solve for x
    x = 139,669,455,312.10/427,671.66
  6. Step 6: Final answer
    x = 326,581.04

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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.