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Finding the Fourth Proportional to 446,816.70, 670,289.85 and 147,246.30

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Solution

The fourth proportional to 446,816.70, 670,289.85 and 147,246.30 is: 220,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,816.70 : 670,289.85 = 147,246.30 : x
  2. Step 2: Convert to fraction form
    446,816.70/670,289.85 = 147,246.30/x
  3. Step 3: Cross multiply
    446,816.70x = 670,289.85 × 147,246.30
  4. Step 4: Simplify right side
    446,816.70x = 98,697,700,340.06
  5. Step 5: Solve for x
    x = 98,697,700,340.06/446,816.70
  6. Step 6: Final answer
    x = 220,890.80

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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.