Home / 939,613.50-1,296,670.04-509,893.52

Finding the Fourth Proportional to 939,613.50, 1,296,670.04 and 509,893.52

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Solution

The fourth proportional to 939,613.50, 1,296,670.04 and 509,893.52 is: 703,654.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,613.50 : 1,296,670.04 = 509,893.52 : x
  2. Step 2: Convert to fraction form
    939,613.50/1,296,670.04 = 509,893.52/x
  3. Step 3: Cross multiply
    939,613.50x = 1,296,670.04 × 509,893.52
  4. Step 4: Simplify right side
    939,613.50x = 661,163,650,974.14
  5. Step 5: Solve for x
    x = 661,163,650,974.14/939,613.50
  6. Step 6: Final answer
    x = 703,654.91

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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.