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Finding the Fourth Proportional to 447,751.44, 617,625.54 and 286,549.56

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Solution

The fourth proportional to 447,751.44, 617,625.54 and 286,549.56 is: 395,264.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,751.44 : 617,625.54 = 286,549.56 : x
  2. Step 2: Convert to fraction form
    447,751.44/617,625.54 = 286,549.56/x
  3. Step 3: Cross multiply
    447,751.44x = 617,625.54 × 286,549.56
  4. Step 4: Simplify right side
    447,751.44x = 176,980,326,731.76
  5. Step 5: Solve for x
    x = 176,980,326,731.76/447,751.44
  6. Step 6: Final answer
    x = 395,264.67

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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.