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Finding the Fourth Proportional to 245,848.80, 343,401 and 245,848.80

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Solution

The fourth proportional to 245,848.80, 343,401 and 245,848.80 is: 343,401

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,848.80 : 343,401 = 245,848.80 : x
  2. Step 2: Convert to fraction form
    245,848.80/343,401 = 245,848.80/x
  3. Step 3: Cross multiply
    245,848.80x = 343,401 × 245,848.80
  4. Step 4: Simplify right side
    245,848.80x = 84,424,723,768.80
  5. Step 5: Solve for x
    x = 84,424,723,768.80/245,848.80
  6. Step 6: Final answer
    x = 343,401

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.