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Finding the Fourth Proportional to 620,595.21, 930,874.22 and 171,343.50

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Solution

The fourth proportional to 620,595.21, 930,874.22 and 171,343.50 is: 257,010.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,595.21 : 930,874.22 = 171,343.50 : x
  2. Step 2: Convert to fraction form
    620,595.21/930,874.22 = 171,343.50/x
  3. Step 3: Cross multiply
    620,595.21x = 930,874.22 × 171,343.50
  4. Step 4: Simplify right side
    620,595.21x = 159,499,246,057.85
  5. Step 5: Solve for x
    x = 159,499,246,057.85/620,595.21
  6. Step 6: Final answer
    x = 257,010.11

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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.