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Finding the Fourth Proportional to 562,589.64, 776,374.56 and 307,956.96

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Solution

The fourth proportional to 562,589.64, 776,374.56 and 307,956.96 is: 424,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,589.64 : 776,374.56 = 307,956.96 : x
  2. Step 2: Convert to fraction form
    562,589.64/776,374.56 = 307,956.96/x
  3. Step 3: Cross multiply
    562,589.64x = 776,374.56 × 307,956.96
  4. Step 4: Simplify right side
    562,589.64x = 239,089,949,318.94
  5. Step 5: Solve for x
    x = 239,089,949,318.94/562,589.64
  6. Step 6: Final answer
    x = 424,981.07

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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.