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Finding the Fourth Proportional to 314,411.89, 433,874.80 and 171,172.44

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Solution

The fourth proportional to 314,411.89, 433,874.80 and 171,172.44 is: 236,210.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,411.89 : 433,874.80 = 171,172.44 : x
  2. Step 2: Convert to fraction form
    314,411.89/433,874.80 = 171,172.44/x
  3. Step 3: Cross multiply
    314,411.89x = 433,874.80 × 171,172.44
  4. Step 4: Simplify right side
    314,411.89x = 74,267,408,170.51
  5. Step 5: Solve for x
    x = 74,267,408,170.51/314,411.89
  6. Step 6: Final answer
    x = 236,210.56

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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.