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Finding the Fourth Proportional to 443,358.40, 664,843.20 and 177,030.40

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Solution

The fourth proportional to 443,358.40, 664,843.20 and 177,030.40 is: 265,467.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,358.40 : 664,843.20 = 177,030.40 : x
  2. Step 2: Convert to fraction form
    443,358.40/664,843.20 = 177,030.40/x
  3. Step 3: Cross multiply
    443,358.40x = 664,843.20 × 177,030.40
  4. Step 4: Simplify right side
    443,358.40x = 117,697,457,633.28
  5. Step 5: Solve for x
    x = 117,697,457,633.28/443,358.40
  6. Step 6: Final answer
    x = 265,467.98

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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.