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Finding the Fourth Proportional to 450,011.52, 621,037.44 and 248,820.48

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Solution

The fourth proportional to 450,011.52, 621,037.44 and 248,820.48 is: 343,384.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,011.52 : 621,037.44 = 248,820.48 : x
  2. Step 2: Convert to fraction form
    450,011.52/621,037.44 = 248,820.48/x
  3. Step 3: Cross multiply
    450,011.52x = 621,037.44 × 248,820.48
  4. Step 4: Simplify right side
    450,011.52x = 154,526,833,918.77
  5. Step 5: Solve for x
    x = 154,526,833,918.77/450,011.52
  6. Step 6: Final answer
    x = 343,384.17

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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.