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Finding the Fourth Proportional to 1,075.14, 1,483.47 and 632.94

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Solution

The fourth proportional to 1,075.14, 1,483.47 and 632.94 is: 873.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075.14 : 1,483.47 = 632.94 : x
  2. Step 2: Convert to fraction form
    1,075.14/1,483.47 = 632.94/x
  3. Step 3: Cross multiply
    1,075.14x = 1,483.47 × 632.94
  4. Step 4: Simplify right side
    1,075.14x = 938,947.50
  5. Step 5: Solve for x
    x = 938,947.50/1,075.14
  6. Step 6: Final answer
    x = 873.33

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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.