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Finding the Fourth Proportional to 446,176.31, 669,215.50 and 130,636.31

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Solution

The fourth proportional to 446,176.31, 669,215.50 and 130,636.31 is: 195,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,176.31 : 669,215.50 = 130,636.31 : x
  2. Step 2: Convert to fraction form
    446,176.31/669,215.50 = 130,636.31/x
  3. Step 3: Cross multiply
    446,176.31x = 669,215.50 × 130,636.31
  4. Step 4: Simplify right side
    446,176.31x = 87,423,843,514.81
  5. Step 5: Solve for x
    x = 87,423,843,514.81/446,176.31
  6. Step 6: Final answer
    x = 195,940.13

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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.