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Finding the Fourth Proportional to 1,473.54, 2,210.80 and 693.52

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Solution

The fourth proportional to 1,473.54, 2,210.80 and 693.52 is: 1,040.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.54 : 2,210.80 = 693.52 : x
  2. Step 2: Convert to fraction form
    1,473.54/2,210.80 = 693.52/x
  3. Step 3: Cross multiply
    1,473.54x = 2,210.80 × 693.52
  4. Step 4: Simplify right side
    1,473.54x = 1,533,234.02
  5. Step 5: Solve for x
    x = 1,533,234.02/1,473.54
  6. Step 6: Final answer
    x = 1,040.51

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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.