Home / 1,220,234.76-1,683,354.42-767,775.24

Finding the Fourth Proportional to 1,220,234.76, 1,683,354.42 and 767,775.24

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Solution

The fourth proportional to 1,220,234.76, 1,683,354.42 and 767,775.24 is: 1,059,171.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,234.76 : 1,683,354.42 = 767,775.24 : x
  2. Step 2: Convert to fraction form
    1,220,234.76/1,683,354.42 = 767,775.24/x
  3. Step 3: Cross multiply
    1,220,234.76x = 1,683,354.42 × 767,775.24
  4. Step 4: Simplify right side
    1,220,234.76x = 1,292,437,843,820.56
  5. Step 5: Solve for x
    x = 1,292,437,843,820.56/1,220,234.76
  6. Step 6: Final answer
    x = 1,059,171.47

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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.