Home / 805,044.84-1,109,818.45-640,256.67

Finding the Fourth Proportional to 805,044.84, 1,109,818.45 and 640,256.67

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Solution

The fourth proportional to 805,044.84, 1,109,818.45 and 640,256.67 is: 882,644.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,044.84 : 1,109,818.45 = 640,256.67 : x
  2. Step 2: Convert to fraction form
    805,044.84/1,109,818.45 = 640,256.67/x
  3. Step 3: Cross multiply
    805,044.84x = 1,109,818.45 × 640,256.67
  4. Step 4: Simplify right side
    805,044.84x = 710,568,662,300.44
  5. Step 5: Solve for x
    x = 710,568,662,300.44/805,044.84
  6. Step 6: Final answer
    x = 882,644.82

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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.