Home / 770,129.87-1,062,453.78-515,563.07

Finding the Fourth Proportional to 770,129.87, 1,062,453.78 and 515,563.07

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Solution

The fourth proportional to 770,129.87, 1,062,453.78 and 515,563.07 is: 711,259.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,129.87 : 1,062,453.78 = 515,563.07 : x
  2. Step 2: Convert to fraction form
    770,129.87/1,062,453.78 = 515,563.07/x
  3. Step 3: Cross multiply
    770,129.87x = 1,062,453.78 × 515,563.07
  4. Step 4: Simplify right side
    770,129.87x = 547,761,927,237.64
  5. Step 5: Solve for x
    x = 547,761,927,237.64/770,129.87
  6. Step 6: Final answer
    x = 711,259.17

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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.