Home / 939,807.66-1,296,899.88-510,078.57

Finding the Fourth Proportional to 939,807.66, 1,296,899.88 and 510,078.57

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Solution

The fourth proportional to 939,807.66, 1,296,899.88 and 510,078.57 is: 703,889.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,807.66 : 1,296,899.88 = 510,078.57 : x
  2. Step 2: Convert to fraction form
    939,807.66/1,296,899.88 = 510,078.57/x
  3. Step 3: Cross multiply
    939,807.66x = 1,296,899.88 × 510,078.57
  4. Step 4: Simplify right side
    939,807.66x = 661,520,829,447.40
  5. Step 5: Solve for x
    x = 661,520,829,447.40/939,807.66
  6. Step 6: Final answer
    x = 703,889.59

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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.