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Finding the Fourth Proportional to 562,678.25, 776,496.02 and 308,029.43

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Solution

The fourth proportional to 562,678.25, 776,496.02 and 308,029.43 is: 425,080.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,678.25 : 776,496.02 = 308,029.43 : x
  2. Step 2: Convert to fraction form
    562,678.25/776,496.02 = 308,029.43/x
  3. Step 3: Cross multiply
    562,678.25x = 776,496.02 × 308,029.43
  4. Step 4: Simplify right side
    562,678.25x = 239,183,626,838.96
  5. Step 5: Solve for x
    x = 239,183,626,838.96/562,678.25
  6. Step 6: Final answer
    x = 425,080.64

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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.