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Finding the Fourth Proportional to 1,459.48, 2,014.18 and 838.52

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Solution

The fourth proportional to 1,459.48, 2,014.18 and 838.52 is: 1,157.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.48 : 2,014.18 = 838.52 : x
  2. Step 2: Convert to fraction form
    1,459.48/2,014.18 = 838.52/x
  3. Step 3: Cross multiply
    1,459.48x = 2,014.18 × 838.52
  4. Step 4: Simplify right side
    1,459.48x = 1,688,930.21
  5. Step 5: Solve for x
    x = 1,688,930.21/1,459.48
  6. Step 6: Final answer
    x = 1,157.21

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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.