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Finding the Fourth Proportional to 929.49, 1,394.45 and 467.49

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Solution

The fourth proportional to 929.49, 1,394.45 and 467.49 is: 701.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    929.49 : 1,394.45 = 467.49 : x
  2. Step 2: Convert to fraction form
    929.49/1,394.45 = 467.49/x
  3. Step 3: Cross multiply
    929.49x = 1,394.45 × 467.49
  4. Step 4: Simplify right side
    929.49x = 651,889.09
  5. Step 5: Solve for x
    x = 651,889.09/929.49
  6. Step 6: Final answer
    x = 701.34

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Double scale
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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.