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Finding the Fourth Proportional to 351,874.80, 527,812.20 and 292,777.20

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Solution

The fourth proportional to 351,874.80, 527,812.20 and 292,777.20 is: 439,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,874.80 : 527,812.20 = 292,777.20 : x
  2. Step 2: Convert to fraction form
    351,874.80/527,812.20 = 292,777.20/x
  3. Step 3: Cross multiply
    351,874.80x = 527,812.20 × 292,777.20
  4. Step 4: Simplify right side
    351,874.80x = 154,531,378,041.84
  5. Step 5: Solve for x
    x = 154,531,378,041.84/351,874.80
  6. Step 6: Final answer
    x = 439,165.80

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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.