Home / 939,630.96-1,296,691.54-509,911.08

Finding the Fourth Proportional to 939,630.96, 1,296,691.54 and 509,911.08

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Solution

The fourth proportional to 939,630.96, 1,296,691.54 and 509,911.08 is: 703,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,630.96 : 1,296,691.54 = 509,911.08 : x
  2. Step 2: Convert to fraction form
    939,630.96/1,296,691.54 = 509,911.08/x
  3. Step 3: Cross multiply
    939,630.96x = 1,296,691.54 × 509,911.08
  4. Step 4: Simplify right side
    939,630.96x = 661,197,383,588.26
  5. Step 5: Solve for x
    x = 661,197,383,588.26/939,630.96
  6. Step 6: Final answer
    x = 703,677.73

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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.