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Finding the Fourth Proportional to 1,117.76, 1,675.06 and 952.36

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Solution

The fourth proportional to 1,117.76, 1,675.06 and 952.36 is: 1,427.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.76 : 1,675.06 = 952.36 : x
  2. Step 2: Convert to fraction form
    1,117.76/1,675.06 = 952.36/x
  3. Step 3: Cross multiply
    1,117.76x = 1,675.06 × 952.36
  4. Step 4: Simplify right side
    1,117.76x = 1,595,253.57
  5. Step 5: Solve for x
    x = 1,595,253.57/1,117.76
  6. Step 6: Final answer
    x = 1,427.19

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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.