Home / 805,887.36-1,112,126.64-443,348.16

Finding the Fourth Proportional to 805,887.36, 1,112,126.64 and 443,348.16

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Solution

The fourth proportional to 805,887.36, 1,112,126.64 and 443,348.16 is: 611,821.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,887.36 : 1,112,126.64 = 443,348.16 : x
  2. Step 2: Convert to fraction form
    805,887.36/1,112,126.64 = 443,348.16/x
  3. Step 3: Cross multiply
    805,887.36x = 1,112,126.64 × 443,348.16
  4. Step 4: Simplify right side
    805,887.36x = 493,059,299,530.98
  5. Step 5: Solve for x
    x = 493,059,299,530.98/805,887.36
  6. Step 6: Final answer
    x = 611,821.61

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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.