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Finding the Fourth Proportional to 1,595.88, 2,391.74 and 670.22

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Solution

The fourth proportional to 1,595.88, 2,391.74 and 670.22 is: 1,004.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,595.88 : 2,391.74 = 670.22 : x
  2. Step 2: Convert to fraction form
    1,595.88/2,391.74 = 670.22/x
  3. Step 3: Cross multiply
    1,595.88x = 2,391.74 × 670.22
  4. Step 4: Simplify right side
    1,595.88x = 1,602,976.67
  5. Step 5: Solve for x
    x = 1,602,976.67/1,595.88
  6. Step 6: Final answer
    x = 1,004.45

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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.