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Finding the Fourth Proportional to 319,280.40, 440,659.44 and 192,026.16

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Solution

The fourth proportional to 319,280.40, 440,659.44 and 192,026.16 is: 265,027.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,280.40 : 440,659.44 = 192,026.16 : x
  2. Step 2: Convert to fraction form
    319,280.40/440,659.44 = 192,026.16/x
  3. Step 3: Cross multiply
    319,280.40x = 440,659.44 × 192,026.16
  4. Step 4: Simplify right side
    319,280.40x = 84,618,140,130.95
  5. Step 5: Solve for x
    x = 84,618,140,130.95/319,280.40
  6. Step 6: Final answer
    x = 265,027.67

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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.