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Finding the Fourth Proportional to 1,075.19, 1,483.48 and 633.00

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Solution

The fourth proportional to 1,075.19, 1,483.48 and 633.00 is: 873.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075.19 : 1,483.48 = 633.00 : x
  2. Step 2: Convert to fraction form
    1,075.19/1,483.48 = 633.00/x
  3. Step 3: Cross multiply
    1,075.19x = 1,483.48 × 633.00
  4. Step 4: Simplify right side
    1,075.19x = 939,049.19
  5. Step 5: Solve for x
    x = 939,049.19/1,075.19
  6. Step 6: Final answer
    x = 873.38

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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.