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Finding the Fourth Proportional to 354,742.80, 532,114.20 and 347,744.40

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Solution

The fourth proportional to 354,742.80, 532,114.20 and 347,744.40 is: 521,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,742.80 : 532,114.20 = 347,744.40 : x
  2. Step 2: Convert to fraction form
    354,742.80/532,114.20 = 347,744.40/x
  3. Step 3: Cross multiply
    354,742.80x = 532,114.20 × 347,744.40
  4. Step 4: Simplify right side
    354,742.80x = 185,039,733,210.48
  5. Step 5: Solve for x
    x = 185,039,733,210.48/354,742.80
  6. Step 6: Final answer
    x = 521,616.60

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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.