Home / 683,516.40-1,025,385.48-257,085.60

Finding the Fourth Proportional to 683,516.40, 1,025,385.48 and 257,085.60

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Solution

The fourth proportional to 683,516.40, 1,025,385.48 and 257,085.60 is: 385,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,516.40 : 1,025,385.48 = 257,085.60 : x
  2. Step 2: Convert to fraction form
    683,516.40/1,025,385.48 = 257,085.60/x
  3. Step 3: Cross multiply
    683,516.40x = 1,025,385.48 × 257,085.60
  4. Step 4: Simplify right side
    683,516.40x = 263,611,841,357.09
  5. Step 5: Solve for x
    x = 263,611,841,357.09/683,516.40
  6. Step 6: Final answer
    x = 385,670.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.