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Finding the Fourth Proportional to 1,495.63, 2,241.90 and 714.28

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Solution

The fourth proportional to 1,495.63, 2,241.90 and 714.28 is: 1,070.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.63 : 2,241.90 = 714.28 : x
  2. Step 2: Convert to fraction form
    1,495.63/2,241.90 = 714.28/x
  3. Step 3: Cross multiply
    1,495.63x = 2,241.90 × 714.28
  4. Step 4: Simplify right side
    1,495.63x = 1,601,344.33
  5. Step 5: Solve for x
    x = 1,601,344.33/1,495.63
  6. Step 6: Final answer
    x = 1,070.68

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1.5x scale

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.