Home / 1,116.88-1,541.32-612.76

Finding the Fourth Proportional to 1,116.88, 1,541.32 and 612.76

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Solution

The fourth proportional to 1,116.88, 1,541.32 and 612.76 is: 845.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.88 : 1,541.32 = 612.76 : x
  2. Step 2: Convert to fraction form
    1,116.88/1,541.32 = 612.76/x
  3. Step 3: Cross multiply
    1,116.88x = 1,541.32 × 612.76
  4. Step 4: Simplify right side
    1,116.88x = 944,459.24
  5. Step 5: Solve for x
    x = 944,459.24/1,116.88
  6. Step 6: Final answer
    x = 845.62

Related Problems

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Half scale
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Double scale
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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.