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Finding the Fourth Proportional to 480,948.72, 663,684.94 and 263,152.68

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Solution

The fourth proportional to 480,948.72, 663,684.94 and 263,152.68 is: 363,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,948.72 : 663,684.94 = 263,152.68 : x
  2. Step 2: Convert to fraction form
    480,948.72/663,684.94 = 263,152.68/x
  3. Step 3: Cross multiply
    480,948.72x = 663,684.94 × 263,152.68
  4. Step 4: Simplify right side
    480,948.72x = 174,650,470,636.64
  5. Step 5: Solve for x
    x = 174,650,470,636.64/480,948.72
  6. Step 6: Final answer
    x = 363,137.41

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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.