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Finding the Fourth Proportional to 1,885.62, 2,602.18 and 1,057.62

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Solution

The fourth proportional to 1,885.62, 2,602.18 and 1,057.62 is: 1,459.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.62 : 2,602.18 = 1,057.62 : x
  2. Step 2: Convert to fraction form
    1,885.62/2,602.18 = 1,057.62/x
  3. Step 3: Cross multiply
    1,885.62x = 2,602.18 × 1,057.62
  4. Step 4: Simplify right side
    1,885.62x = 2,752,117.61
  5. Step 5: Solve for x
    x = 2,752,117.61/1,885.62
  6. Step 6: Final answer
    x = 1,459.53

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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.