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Finding the Fourth Proportional to 1,074.93, 1,483.05 and 632.94

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Solution

The fourth proportional to 1,074.93, 1,483.05 and 632.94 is: 873.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074.93 : 1,483.05 = 632.94 : x
  2. Step 2: Convert to fraction form
    1,074.93/1,483.05 = 632.94/x
  3. Step 3: Cross multiply
    1,074.93x = 1,483.05 × 632.94
  4. Step 4: Simplify right side
    1,074.93x = 938,681.67
  5. Step 5: Solve for x
    x = 938,681.67/1,074.93
  6. Step 6: Final answer
    x = 873.25

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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.