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Finding the Fourth Proportional to 1,670.41, 2,305.13 and 924.36

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Solution

The fourth proportional to 1,670.41, 2,305.13 and 924.36 is: 1,275.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.41 : 2,305.13 = 924.36 : x
  2. Step 2: Convert to fraction form
    1,670.41/2,305.13 = 924.36/x
  3. Step 3: Cross multiply
    1,670.41x = 2,305.13 × 924.36
  4. Step 4: Simplify right side
    1,670.41x = 2,130,769.97
  5. Step 5: Solve for x
    x = 2,130,769.97/1,670.41
  6. Step 6: Final answer
    x = 1,275.60

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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.