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Finding the Fourth Proportional to 341,903.80, 512,855.70 and 322,220.80

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Solution

The fourth proportional to 341,903.80, 512,855.70 and 322,220.80 is: 483,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,903.80 : 512,855.70 = 322,220.80 : x
  2. Step 2: Convert to fraction form
    341,903.80/512,855.70 = 322,220.80/x
  3. Step 3: Cross multiply
    341,903.80x = 512,855.70 × 322,220.80
  4. Step 4: Simplify right side
    341,903.80x = 165,252,773,938.56
  5. Step 5: Solve for x
    x = 165,252,773,938.56/341,903.80
  6. Step 6: Final answer
    x = 483,331.20

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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.