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Finding the Fourth Proportional to 446,684.63, 669,861.70 and 147,077.78

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Solution

The fourth proportional to 446,684.63, 669,861.70 and 147,077.78 is: 220,562.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,684.63 : 669,861.70 = 147,077.78 : x
  2. Step 2: Convert to fraction form
    446,684.63/669,861.70 = 147,077.78/x
  3. Step 3: Cross multiply
    446,684.63x = 669,861.70 × 147,077.78
  4. Step 4: Simplify right side
    446,684.63x = 98,521,768,026.02
  5. Step 5: Solve for x
    x = 98,521,768,026.02/446,684.63
  6. Step 6: Final answer
    x = 220,562.25

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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.