Home / 939,313.21-1,296,254.73-509,593.33

Finding the Fourth Proportional to 939,313.21, 1,296,254.73 and 509,593.33

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Solution

The fourth proportional to 939,313.21, 1,296,254.73 and 509,593.33 is: 703,240.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,313.21 : 1,296,254.73 = 509,593.33 : x
  2. Step 2: Convert to fraction form
    939,313.21/1,296,254.73 = 509,593.33/x
  3. Step 3: Cross multiply
    939,313.21x = 1,296,254.73 × 509,593.33
  4. Step 4: Simplify right side
    939,313.21x = 660,562,761,840.98
  5. Step 5: Solve for x
    x = 660,562,761,840.98/939,313.21
  6. Step 6: Final answer
    x = 703,240.15

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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.