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Finding the Fourth Proportional to 358,652.20, 537,783.90 and 148,052.20

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Solution

The fourth proportional to 358,652.20, 537,783.90 and 148,052.20 is: 221,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,652.20 : 537,783.90 = 148,052.20 : x
  2. Step 2: Convert to fraction form
    358,652.20/537,783.90 = 148,052.20/x
  3. Step 3: Cross multiply
    358,652.20x = 537,783.90 × 148,052.20
  4. Step 4: Simplify right side
    358,652.20x = 79,620,089,519.58
  5. Step 5: Solve for x
    x = 79,620,089,519.58/358,652.20
  6. Step 6: Final answer
    x = 221,998.05

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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.