Home / 939,725.30-1,296,820.89-510,005.42

Finding the Fourth Proportional to 939,725.30, 1,296,820.89 and 510,005.42

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Solution

The fourth proportional to 939,725.30, 1,296,820.89 and 510,005.42 is: 703,807.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,725.30 : 1,296,820.89 = 510,005.42 : x
  2. Step 2: Convert to fraction form
    939,725.30/1,296,820.89 = 510,005.42/x
  3. Step 3: Cross multiply
    939,725.30x = 1,296,820.89 × 510,005.42
  4. Step 4: Simplify right side
    939,725.30x = 661,385,682,669.22
  5. Step 5: Solve for x
    x = 661,385,682,669.22/939,725.30
  6. Step 6: Final answer
    x = 703,807.47

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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.