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Finding the Fourth Proportional to 1,075.01, 1,483.61 and 655.38

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Solution

The fourth proportional to 1,075.01, 1,483.61 and 655.38 is: 904.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075.01 : 1,483.61 = 655.38 : x
  2. Step 2: Convert to fraction form
    1,075.01/1,483.61 = 655.38/x
  3. Step 3: Cross multiply
    1,075.01x = 1,483.61 × 655.38
  4. Step 4: Simplify right side
    1,075.01x = 972,325.04
  5. Step 5: Solve for x
    x = 972,325.04/1,075.01
  6. Step 6: Final answer
    x = 904.48

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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.