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Finding the Fourth Proportional to 662,070.97, 992,995.28 and 188,643.79

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Solution

The fourth proportional to 662,070.97, 992,995.28 and 188,643.79 is: 282,934.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,070.97 : 992,995.28 = 188,643.79 : x
  2. Step 2: Convert to fraction form
    662,070.97/992,995.28 = 188,643.79/x
  3. Step 3: Cross multiply
    662,070.97x = 992,995.28 × 188,643.79
  4. Step 4: Simplify right side
    662,070.97x = 187,322,393,071.31
  5. Step 5: Solve for x
    x = 187,322,393,071.31/662,070.97
  6. Step 6: Final answer
    x = 282,934.01

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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.