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Finding the Fourth Proportional to 590,458.60, 885,906.60 and 191,112.40

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Solution

The fourth proportional to 590,458.60, 885,906.60 and 191,112.40 is: 286,739.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,458.60 : 885,906.60 = 191,112.40 : x
  2. Step 2: Convert to fraction form
    590,458.60/885,906.60 = 191,112.40/x
  3. Step 3: Cross multiply
    590,458.60x = 885,906.60 × 191,112.40
  4. Step 4: Simplify right side
    590,458.60x = 169,307,736,501.84
  5. Step 5: Solve for x
    x = 169,307,736,501.84/590,458.60
  6. Step 6: Final answer
    x = 286,739.39

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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.