Home / 805,935.96-1,112,156.51-443,336.81

Finding the Fourth Proportional to 805,935.96, 1,112,156.51 and 443,336.81

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Solution

The fourth proportional to 805,935.96, 1,112,156.51 and 443,336.81 is: 611,785.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,935.96 : 1,112,156.51 = 443,336.81 : x
  2. Step 2: Convert to fraction form
    805,935.96/1,112,156.51 = 443,336.81/x
  3. Step 3: Cross multiply
    805,935.96x = 1,112,156.51 × 443,336.81
  4. Step 4: Simplify right side
    805,935.96x = 493,059,911,586.67
  5. Step 5: Solve for x
    x = 493,059,911,586.67/805,935.96
  6. Step 6: Final answer
    x = 611,785.47

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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.