Home / 805,953.28-1,112,217.84-443,400.64

Finding the Fourth Proportional to 805,953.28, 1,112,217.84 and 443,400.64

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Solution

The fourth proportional to 805,953.28, 1,112,217.84 and 443,400.64 is: 611,894.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,953.28 : 1,112,217.84 = 443,400.64 : x
  2. Step 2: Convert to fraction form
    805,953.28/1,112,217.84 = 443,400.64/x
  3. Step 3: Cross multiply
    805,953.28x = 1,112,217.84 × 443,400.64
  4. Step 4: Simplify right side
    805,953.28x = 493,158,102,075.42
  5. Step 5: Solve for x
    x = 493,158,102,075.42/805,953.28
  6. Step 6: Final answer
    x = 611,894.16

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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.