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Finding the Fourth Proportional to 313,835.72, 433,101.72 and 170,605.40

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Solution

The fourth proportional to 313,835.72, 433,101.72 and 170,605.40 is: 235,440.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,835.72 : 433,101.72 = 170,605.40 : x
  2. Step 2: Convert to fraction form
    313,835.72/433,101.72 = 170,605.40/x
  3. Step 3: Cross multiply
    313,835.72x = 433,101.72 × 170,605.40
  4. Step 4: Simplify right side
    313,835.72x = 73,889,492,181.29
  5. Step 5: Solve for x
    x = 73,889,492,181.29/313,835.72
  6. Step 6: Final answer
    x = 235,440.03

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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.