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Finding the Fourth Proportional to 562,822.05, 776,686.73 and 308,173.24

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Solution

The fourth proportional to 562,822.05, 776,686.73 and 308,173.24 is: 425,274.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,822.05 : 776,686.73 = 308,173.24 : x
  2. Step 2: Convert to fraction form
    562,822.05/776,686.73 = 308,173.24/x
  3. Step 3: Cross multiply
    562,822.05x = 776,686.73 × 308,173.24
  4. Step 4: Simplify right side
    562,822.05x = 239,354,065,479.10
  5. Step 5: Solve for x
    x = 239,354,065,479.10/562,822.05
  6. Step 6: Final answer
    x = 425,274.85

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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.