Home / 939,712.01-1,296,803.60-509,992.43

Finding the Fourth Proportional to 939,712.01, 1,296,803.60 and 509,992.43

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Solution

The fourth proportional to 939,712.01, 1,296,803.60 and 509,992.43 is: 703,790.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,712.01 : 1,296,803.60 = 509,992.43 : x
  2. Step 2: Convert to fraction form
    939,712.01/1,296,803.60 = 509,992.43/x
  3. Step 3: Cross multiply
    939,712.01x = 1,296,803.60 × 509,992.43
  4. Step 4: Simplify right side
    939,712.01x = 661,360,010,162.77
  5. Step 5: Solve for x
    x = 661,360,010,162.77/939,712.01
  6. Step 6: Final answer
    x = 703,790.10

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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.