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Finding the Fourth Proportional to 1,482.04, 2,223.24 and 712

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Solution

The fourth proportional to 1,482.04, 2,223.24 and 712 is: 1,068.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.04 : 2,223.24 = 712 : x
  2. Step 2: Convert to fraction form
    1,482.04/2,223.24 = 712/x
  3. Step 3: Cross multiply
    1,482.04x = 2,223.24 × 712
  4. Step 4: Simplify right side
    1,482.04x = 1,582,946.88
  5. Step 5: Solve for x
    x = 1,582,946.88/1,482.04
  6. Step 6: Final answer
    x = 1,068.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.