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Finding the Fourth Proportional to 346,922.80, 520,432.80 and 147,241.60

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Solution

The fourth proportional to 346,922.80, 520,432.80 and 147,241.60 is: 220,883.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,922.80 : 520,432.80 = 147,241.60 : x
  2. Step 2: Convert to fraction form
    346,922.80/520,432.80 = 147,241.60/x
  3. Step 3: Cross multiply
    346,922.80x = 520,432.80 × 147,241.60
  4. Step 4: Simplify right side
    346,922.80x = 76,629,358,164.48
  5. Step 5: Solve for x
    x = 76,629,358,164.48/346,922.80
  6. Step 6: Final answer
    x = 220,883.03

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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.