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Finding the Fourth Proportional to 480,820.86, 663,491.45 and 265,907.43

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Solution

The fourth proportional to 480,820.86, 663,491.45 and 265,907.43 is: 366,929.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,820.86 : 663,491.45 = 265,907.43 : x
  2. Step 2: Convert to fraction form
    480,820.86/663,491.45 = 265,907.43/x
  3. Step 3: Cross multiply
    480,820.86x = 663,491.45 × 265,907.43
  4. Step 4: Simplify right side
    480,820.86x = 176,427,306,961.24
  5. Step 5: Solve for x
    x = 176,427,306,961.24/480,820.86
  6. Step 6: Final answer
    x = 366,929.39

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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.