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Finding the Fourth Proportional to 1,075.46, 1,484.08 and 603.35

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Solution

The fourth proportional to 1,075.46, 1,484.08 and 603.35 is: 832.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075.46 : 1,484.08 = 603.35 : x
  2. Step 2: Convert to fraction form
    1,075.46/1,484.08 = 603.35/x
  3. Step 3: Cross multiply
    1,075.46x = 1,484.08 × 603.35
  4. Step 4: Simplify right side
    1,075.46x = 895,409.23
  5. Step 5: Solve for x
    x = 895,409.23/1,075.46
  6. Step 6: Final answer
    x = 832.59

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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.