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Finding the Fourth Proportional to 443,532.63, 612,075.25 and 239,583.54

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Solution

The fourth proportional to 443,532.63, 612,075.25 and 239,583.54 is: 330,625.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,532.63 : 612,075.25 = 239,583.54 : x
  2. Step 2: Convert to fraction form
    443,532.63/612,075.25 = 239,583.54/x
  3. Step 3: Cross multiply
    443,532.63x = 612,075.25 × 239,583.54
  4. Step 4: Simplify right side
    443,532.63x = 146,643,154,293.22
  5. Step 5: Solve for x
    x = 146,643,154,293.22/443,532.63
  6. Step 6: Final answer
    x = 330,625.40

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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.