Home / 805,888.25-1,112,128.34-443,339.67

Finding the Fourth Proportional to 805,888.25, 1,112,128.34 and 443,339.67

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Solution

The fourth proportional to 805,888.25, 1,112,128.34 and 443,339.67 is: 611,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,888.25 : 1,112,128.34 = 443,339.67 : x
  2. Step 2: Convert to fraction form
    805,888.25/1,112,128.34 = 443,339.67/x
  3. Step 3: Cross multiply
    805,888.25x = 1,112,128.34 × 443,339.67
  4. Step 4: Simplify right side
    805,888.25x = 493,050,611,253.25
  5. Step 5: Solve for x
    x = 493,050,611,253.25/805,888.25
  6. Step 6: Final answer
    x = 611,810.15

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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.