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Finding the Fourth Proportional to 446,430.80, 669,569.40 and 165,803.60

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Solution

The fourth proportional to 446,430.80, 669,569.40 and 165,803.60 is: 248,676.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,430.80 : 669,569.40 = 165,803.60 : x
  2. Step 2: Convert to fraction form
    446,430.80/669,569.40 = 165,803.60/x
  3. Step 3: Cross multiply
    446,430.80x = 669,569.40 × 165,803.60
  4. Step 4: Simplify right side
    446,430.80x = 111,017,016,969.84
  5. Step 5: Solve for x
    x = 111,017,016,969.84/446,430.80
  6. Step 6: Final answer
    x = 248,676.88

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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.