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Finding the Fourth Proportional to 1,855.62, 2,560.60 and 1,058.94

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Solution

The fourth proportional to 1,855.62, 2,560.60 and 1,058.94 is: 1,461.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.62 : 2,560.60 = 1,058.94 : x
  2. Step 2: Convert to fraction form
    1,855.62/2,560.60 = 1,058.94/x
  3. Step 3: Cross multiply
    1,855.62x = 2,560.60 × 1,058.94
  4. Step 4: Simplify right side
    1,855.62x = 2,711,521.76
  5. Step 5: Solve for x
    x = 2,711,521.76/1,855.62
  6. Step 6: Final answer
    x = 1,461.25

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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.