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Finding the Fourth Proportional to 349,297.50, 482,030.55 and 190,321.50

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Solution

The fourth proportional to 349,297.50, 482,030.55 and 190,321.50 is: 262,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,297.50 : 482,030.55 = 190,321.50 : x
  2. Step 2: Convert to fraction form
    349,297.50/482,030.55 = 190,321.50/x
  3. Step 3: Cross multiply
    349,297.50x = 482,030.55 × 190,321.50
  4. Step 4: Simplify right side
    349,297.50x = 91,740,777,321.83
  5. Step 5: Solve for x
    x = 91,740,777,321.83/349,297.50
  6. Step 6: Final answer
    x = 262,643.67

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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.