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Finding the Fourth Proportional to 692,448.62, 955,738.51 and 406,060.97

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Solution

The fourth proportional to 692,448.62, 955,738.51 and 406,060.97 is: 560,457.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,448.62 : 955,738.51 = 406,060.97 : x
  2. Step 2: Convert to fraction form
    692,448.62/955,738.51 = 406,060.97/x
  3. Step 3: Cross multiply
    692,448.62x = 955,738.51 × 406,060.97
  4. Step 4: Simplify right side
    692,448.62x = 388,088,100,643.11
  5. Step 5: Solve for x
    x = 388,088,100,643.11/692,448.62
  6. Step 6: Final answer
    x = 560,457.62

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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.