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Finding the Fourth Proportional to 326,628.40, 450,747.84 and 183,388

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Solution

The fourth proportional to 326,628.40, 450,747.84 and 183,388 is: 253,075.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,628.40 : 450,747.84 = 183,388 : x
  2. Step 2: Convert to fraction form
    326,628.40/450,747.84 = 183,388/x
  3. Step 3: Cross multiply
    326,628.40x = 450,747.84 × 183,388
  4. Step 4: Simplify right side
    326,628.40x = 82,661,744,881.92
  5. Step 5: Solve for x
    x = 82,661,744,881.92/326,628.40
  6. Step 6: Final answer
    x = 253,075.80

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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.