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Finding the Fourth Proportional to 692,448.87, 955,738.86 and 406,061.22

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Solution

The fourth proportional to 692,448.87, 955,738.86 and 406,061.22 is: 560,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,448.87 : 955,738.86 = 406,061.22 : x
  2. Step 2: Convert to fraction form
    692,448.87/955,738.86 = 406,061.22/x
  3. Step 3: Cross multiply
    692,448.87x = 955,738.86 × 406,061.22
  4. Step 4: Simplify right side
    692,448.87x = 388,088,487,493.01
  5. Step 5: Solve for x
    x = 388,088,487,493.01/692,448.87
  6. Step 6: Final answer
    x = 560,457.97

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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.