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Finding the Fourth Proportional to 321,041, 443,038.06 and 177,798.04

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Solution

The fourth proportional to 321,041, 443,038.06 and 177,798.04 is: 245,362.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,041 : 443,038.06 = 177,798.04 : x
  2. Step 2: Convert to fraction form
    321,041/443,038.06 = 177,798.04/x
  3. Step 3: Cross multiply
    321,041x = 443,038.06 × 177,798.04
  4. Step 4: Simplify right side
    321,041x = 78,771,298,713.40
  5. Step 5: Solve for x
    x = 78,771,298,713.40/321,041
  6. Step 6: Final answer
    x = 245,362.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.