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Finding the Fourth Proportional to 262,415.40, 393,623.10 and 183,618.60

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Solution

The fourth proportional to 262,415.40, 393,623.10 and 183,618.60 is: 275,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,415.40 : 393,623.10 = 183,618.60 : x
  2. Step 2: Convert to fraction form
    262,415.40/393,623.10 = 183,618.60/x
  3. Step 3: Cross multiply
    262,415.40x = 393,623.10 × 183,618.60
  4. Step 4: Simplify right side
    262,415.40x = 72,276,522,549.66
  5. Step 5: Solve for x
    x = 72,276,522,549.66/262,415.40
  6. Step 6: Final answer
    x = 275,427.90

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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.