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Finding the Fourth Proportional to 1,667.04, 2,300.40 and 968.64

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Solution

The fourth proportional to 1,667.04, 2,300.40 and 968.64 is: 1,336.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,667.04 : 2,300.40 = 968.64 : x
  2. Step 2: Convert to fraction form
    1,667.04/2,300.40 = 968.64/x
  3. Step 3: Cross multiply
    1,667.04x = 2,300.40 × 968.64
  4. Step 4: Simplify right side
    1,667.04x = 2,228,259.46
  5. Step 5: Solve for x
    x = 2,228,259.46/1,667.04
  6. Step 6: Final answer
    x = 1,336.66

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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.