Home / 939,566.91-1,296,605.78-509,847.03

Finding the Fourth Proportional to 939,566.91, 1,296,605.78 and 509,847.03

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Solution

The fourth proportional to 939,566.91, 1,296,605.78 and 509,847.03 is: 703,590.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,566.91 : 1,296,605.78 = 509,847.03 : x
  2. Step 2: Convert to fraction form
    939,566.91/1,296,605.78 = 509,847.03/x
  3. Step 3: Cross multiply
    939,566.91x = 1,296,605.78 × 509,847.03
  4. Step 4: Simplify right side
    939,566.91x = 661,070,606,013.83
  5. Step 5: Solve for x
    x = 661,070,606,013.83/939,566.91
  6. Step 6: Final answer
    x = 703,590.77

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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.