Home / 727,555.67-1,003,893.76-405,257.57

Finding the Fourth Proportional to 727,555.67, 1,003,893.76 and 405,257.57

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Solution

The fourth proportional to 727,555.67, 1,003,893.76 and 405,257.57 is: 559,181.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,555.67 : 1,003,893.76 = 405,257.57 : x
  2. Step 2: Convert to fraction form
    727,555.67/1,003,893.76 = 405,257.57/x
  3. Step 3: Cross multiply
    727,555.67x = 1,003,893.76 × 405,257.57
  4. Step 4: Simplify right side
    727,555.67x = 406,835,545,715.76
  5. Step 5: Solve for x
    x = 406,835,545,715.76/727,555.67
  6. Step 6: Final answer
    x = 559,181.33

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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.