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Finding the Fourth Proportional to 348,538.30, 522,796.65 and 99,220.30

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Solution

The fourth proportional to 348,538.30, 522,796.65 and 99,220.30 is: 148,827.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,538.30 : 522,796.65 = 99,220.30 : x
  2. Step 2: Convert to fraction form
    348,538.30/522,796.65 = 99,220.30/x
  3. Step 3: Cross multiply
    348,538.30x = 522,796.65 × 99,220.30
  4. Step 4: Simplify right side
    348,538.30x = 51,872,040,452.00
  5. Step 5: Solve for x
    x = 51,872,040,452.00/348,538.30
  6. Step 6: Final answer
    x = 148,827.38

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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.