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Finding the Fourth Proportional to 1,503.95, 2,258.01 and 774.05

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Solution

The fourth proportional to 1,503.95, 2,258.01 and 774.05 is: 1,162.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.95 : 2,258.01 = 774.05 : x
  2. Step 2: Convert to fraction form
    1,503.95/2,258.01 = 774.05/x
  3. Step 3: Cross multiply
    1,503.95x = 2,258.01 × 774.05
  4. Step 4: Simplify right side
    1,503.95x = 1,747,801.35
  5. Step 5: Solve for x
    x = 1,747,801.35/1,503.95
  6. Step 6: Final answer
    x = 1,162.14

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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.