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Finding the Fourth Proportional to 448,492.55, 619,069.70 and 267,261.32

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Solution

The fourth proportional to 448,492.55, 619,069.70 and 267,261.32 is: 368,910.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,492.55 : 619,069.70 = 267,261.32 : x
  2. Step 2: Convert to fraction form
    448,492.55/619,069.70 = 267,261.32/x
  3. Step 3: Cross multiply
    448,492.55x = 619,069.70 × 267,261.32
  4. Step 4: Simplify right side
    448,492.55x = 165,453,387,409.83
  5. Step 5: Solve for x
    x = 165,453,387,409.83/448,492.55
  6. Step 6: Final answer
    x = 368,910.01

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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.