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Finding the Fourth Proportional to 562,961.08, 776,892.90 and 308,323

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Solution

The fourth proportional to 562,961.08, 776,892.90 and 308,323 is: 425,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,961.08 : 776,892.90 = 308,323 : x
  2. Step 2: Convert to fraction form
    562,961.08/776,892.90 = 308,323/x
  3. Step 3: Cross multiply
    562,961.08x = 776,892.90 × 308,323
  4. Step 4: Simplify right side
    562,961.08x = 239,533,949,606.70
  5. Step 5: Solve for x
    x = 239,533,949,606.70/562,961.08
  6. Step 6: Final answer
    x = 425,489.36

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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.