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Finding the Fourth Proportional to 522,643.44, 783,962.28 and 190,219.44

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Solution

The fourth proportional to 522,643.44, 783,962.28 and 190,219.44 is: 285,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,643.44 : 783,962.28 = 190,219.44 : x
  2. Step 2: Convert to fraction form
    522,643.44/783,962.28 = 190,219.44/x
  3. Step 3: Cross multiply
    522,643.44x = 783,962.28 × 190,219.44
  4. Step 4: Simplify right side
    522,643.44x = 149,124,865,882.72
  5. Step 5: Solve for x
    x = 149,124,865,882.72/522,643.44
  6. Step 6: Final answer
    x = 285,328.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.