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Finding the Fourth Proportional to 348,546.30, 522,808.65 and 99,228.30

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Solution

The fourth proportional to 348,546.30, 522,808.65 and 99,228.30 is: 148,839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,546.30 : 522,808.65 = 99,228.30 : x
  2. Step 2: Convert to fraction form
    348,546.30/522,808.65 = 99,228.30/x
  3. Step 3: Cross multiply
    348,546.30x = 522,808.65 × 99,228.30
  4. Step 4: Simplify right side
    348,546.30x = 51,877,413,564.80
  5. Step 5: Solve for x
    x = 51,877,413,564.80/348,546.30
  6. Step 6: Final answer
    x = 148,839.38

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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.