Home / 770,129.54-1,062,453.33-515,562.74

Finding the Fourth Proportional to 770,129.54, 1,062,453.33 and 515,562.74

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Solution

The fourth proportional to 770,129.54, 1,062,453.33 and 515,562.74 is: 711,258.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,129.54 : 1,062,453.33 = 515,562.74 : x
  2. Step 2: Convert to fraction form
    770,129.54/1,062,453.33 = 515,562.74/x
  3. Step 3: Cross multiply
    770,129.54x = 1,062,453.33 × 515,562.74
  4. Step 4: Simplify right side
    770,129.54x = 547,761,344,624.66
  5. Step 5: Solve for x
    x = 547,761,344,624.66/770,129.54
  6. Step 6: Final answer
    x = 711,258.72

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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.