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Finding the Fourth Proportional to 385,113.20, 576,114.60 and 333,100.40

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Solution

The fourth proportional to 385,113.20, 576,114.60 and 333,100.40 is: 498,305.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,113.20 : 576,114.60 = 333,100.40 : x
  2. Step 2: Convert to fraction form
    385,113.20/576,114.60 = 333,100.40/x
  3. Step 3: Cross multiply
    385,113.20x = 576,114.60 × 333,100.40
  4. Step 4: Simplify right side
    385,113.20x = 191,904,003,705.84
  5. Step 5: Solve for x
    x = 191,904,003,705.84/385,113.20
  6. Step 6: Final answer
    x = 498,305.44

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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.