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Finding the Fourth Proportional to 480,536.55, 663,144.57 and 265,685.67

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Solution

The fourth proportional to 480,536.55, 663,144.57 and 265,685.67 is: 366,648.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,536.55 : 663,144.57 = 265,685.67 : x
  2. Step 2: Convert to fraction form
    480,536.55/663,144.57 = 265,685.67/x
  3. Step 3: Cross multiply
    480,536.55x = 663,144.57 × 265,685.67
  4. Step 4: Simplify right side
    480,536.55x = 176,188,009,387.31
  5. Step 5: Solve for x
    x = 176,188,009,387.31/480,536.55
  6. Step 6: Final answer
    x = 366,648.51

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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.