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Finding the Fourth Proportional to 438,802.56, 605,535.36 and 259,954.56

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Solution

The fourth proportional to 438,802.56, 605,535.36 and 259,954.56 is: 358,730.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,802.56 : 605,535.36 = 259,954.56 : x
  2. Step 2: Convert to fraction form
    438,802.56/605,535.36 = 259,954.56/x
  3. Step 3: Cross multiply
    438,802.56x = 605,535.36 × 259,954.56
  4. Step 4: Simplify right side
    438,802.56x = 157,411,678,073.24
  5. Step 5: Solve for x
    x = 157,411,678,073.24/438,802.56
  6. Step 6: Final answer
    x = 358,730.08

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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.