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Finding the Fourth Proportional to 590,539.40, 885,938.70 and 191,112.20

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Solution

The fourth proportional to 590,539.40, 885,938.70 and 191,112.20 is: 286,710.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,539.40 : 885,938.70 = 191,112.20 : x
  2. Step 2: Convert to fraction form
    590,539.40/885,938.70 = 191,112.20/x
  3. Step 3: Cross multiply
    590,539.40x = 885,938.70 × 191,112.20
  4. Step 4: Simplify right side
    590,539.40x = 169,313,694,022.14
  5. Step 5: Solve for x
    x = 169,313,694,022.14/590,539.40
  6. Step 6: Final answer
    x = 286,710.24

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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.