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Finding the Fourth Proportional to 1,703.08, 2,349.97 and 957

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Solution

The fourth proportional to 1,703.08, 2,349.97 and 957 is: 1,320.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703.08 : 2,349.97 = 957 : x
  2. Step 2: Convert to fraction form
    1,703.08/2,349.97 = 957/x
  3. Step 3: Cross multiply
    1,703.08x = 2,349.97 × 957
  4. Step 4: Simplify right side
    1,703.08x = 2,248,921.29
  5. Step 5: Solve for x
    x = 2,248,921.29/1,703.08
  6. Step 6: Final answer
    x = 1,320.50

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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.