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Finding the Fourth Proportional to 448,487.94, 619,063.35 and 267,256.74

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Solution

The fourth proportional to 448,487.94, 619,063.35 and 267,256.74 is: 368,903.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,487.94 : 619,063.35 = 267,256.74 : x
  2. Step 2: Convert to fraction form
    448,487.94/619,063.35 = 267,256.74/x
  3. Step 3: Cross multiply
    448,487.94x = 619,063.35 × 267,256.74
  4. Step 4: Simplify right side
    448,487.94x = 165,448,852,774.48
  5. Step 5: Solve for x
    x = 165,448,852,774.48/448,487.94
  6. Step 6: Final answer
    x = 368,903.68

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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.