Home / 716,972.69-989,199.44-406,823.97

Finding the Fourth Proportional to 716,972.69, 989,199.44 and 406,823.97

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Solution

The fourth proportional to 716,972.69, 989,199.44 and 406,823.97 is: 561,290.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,972.69 : 989,199.44 = 406,823.97 : x
  2. Step 2: Convert to fraction form
    716,972.69/989,199.44 = 406,823.97/x
  3. Step 3: Cross multiply
    716,972.69x = 989,199.44 × 406,823.97
  4. Step 4: Simplify right side
    716,972.69x = 402,430,037,012.98
  5. Step 5: Solve for x
    x = 402,430,037,012.98/716,972.69
  6. Step 6: Final answer
    x = 561,290.61

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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.