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Finding the Fourth Proportional to 480,524.55, 663,137.72 and 265,678.48

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Solution

The fourth proportional to 480,524.55, 663,137.72 and 265,678.48 is: 366,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,524.55 : 663,137.72 = 265,678.48 : x
  2. Step 2: Convert to fraction form
    480,524.55/663,137.72 = 265,678.48/x
  3. Step 3: Cross multiply
    480,524.55x = 663,137.72 × 265,678.48
  4. Step 4: Simplify right side
    480,524.55x = 176,181,421,480.27
  5. Step 5: Solve for x
    x = 176,181,421,480.27/480,524.55
  6. Step 6: Final answer
    x = 366,643.95

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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.