Home / 939,805.65-1,296,932.99-510,085.80

Finding the Fourth Proportional to 939,805.65, 1,296,932.99 and 510,085.80

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Solution

The fourth proportional to 939,805.65, 1,296,932.99 and 510,085.80 is: 703,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,805.65 : 1,296,932.99 = 510,085.80 : x
  2. Step 2: Convert to fraction form
    939,805.65/1,296,932.99 = 510,085.80/x
  3. Step 3: Cross multiply
    939,805.65x = 1,296,932.99 × 510,085.80
  4. Step 4: Simplify right side
    939,805.65x = 661,547,099,200.11
  5. Step 5: Solve for x
    x = 661,547,099,200.11/939,805.65
  6. Step 6: Final answer
    x = 703,919.05

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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.