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Finding the Fourth Proportional to 1,265.17, 1,746.66 and 846.23

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Solution

The fourth proportional to 1,265.17, 1,746.66 and 846.23 is: 1,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265.17 : 1,746.66 = 846.23 : x
  2. Step 2: Convert to fraction form
    1,265.17/1,746.66 = 846.23/x
  3. Step 3: Cross multiply
    1,265.17x = 1,746.66 × 846.23
  4. Step 4: Simplify right side
    1,265.17x = 1,478,071.86
  5. Step 5: Solve for x
    x = 1,478,071.86/1,265.17
  6. Step 6: Final answer
    x = 1,168.28

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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.