Home / 805,888.31-1,112,128.43-443,339.74

Finding the Fourth Proportional to 805,888.31, 1,112,128.43 and 443,339.74

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Solution

The fourth proportional to 805,888.31, 1,112,128.43 and 443,339.74 is: 611,810.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,888.31 : 1,112,128.43 = 443,339.74 : x
  2. Step 2: Convert to fraction form
    805,888.31/1,112,128.43 = 443,339.74/x
  3. Step 3: Cross multiply
    805,888.31x = 1,112,128.43 × 443,339.74
  4. Step 4: Simplify right side
    805,888.31x = 493,050,723,442.17
  5. Step 5: Solve for x
    x = 493,050,723,442.17/805,888.31
  6. Step 6: Final answer
    x = 611,810.24

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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.