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Finding the Fourth Proportional to 446,303.84, 669,455.64 and 130,760.64

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Solution

The fourth proportional to 446,303.84, 669,455.64 and 130,760.64 is: 196,140.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,303.84 : 669,455.64 = 130,760.64 : x
  2. Step 2: Convert to fraction form
    446,303.84/669,455.64 = 130,760.64/x
  3. Step 3: Cross multiply
    446,303.84x = 669,455.64 × 130,760.64
  4. Step 4: Simplify right side
    446,303.84x = 87,538,447,938.01
  5. Step 5: Solve for x
    x = 87,538,447,938.01/446,303.84
  6. Step 6: Final answer
    x = 196,140.92

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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.