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Finding the Fourth Proportional to 1,582.98, 2,184.09 and 884.34

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Solution

The fourth proportional to 1,582.98, 2,184.09 and 884.34 is: 1,220.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,582.98 : 2,184.09 = 884.34 : x
  2. Step 2: Convert to fraction form
    1,582.98/2,184.09 = 884.34/x
  3. Step 3: Cross multiply
    1,582.98x = 2,184.09 × 884.34
  4. Step 4: Simplify right side
    1,582.98x = 1,931,478.15
  5. Step 5: Solve for x
    x = 1,931,478.15/1,582.98
  6. Step 6: Final answer
    x = 1,220.15

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1.5x scale

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.