Home / 939,713.76-1,296,814.68-509,997.60

Finding the Fourth Proportional to 939,713.76, 1,296,814.68 and 509,997.60

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Solution

The fourth proportional to 939,713.76, 1,296,814.68 and 509,997.60 is: 703,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,713.76 : 1,296,814.68 = 509,997.60 : x
  2. Step 2: Convert to fraction form
    939,713.76/1,296,814.68 = 509,997.60/x
  3. Step 3: Cross multiply
    939,713.76x = 1,296,814.68 × 509,997.60
  4. Step 4: Simplify right side
    939,713.76x = 661,372,374,444.77
  5. Step 5: Solve for x
    x = 661,372,374,444.77/939,713.76
  6. Step 6: Final answer
    x = 703,801.95

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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.