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Finding the Fourth Proportional to 517,656.03, 776,562.39 and 162,636.63

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Solution

The fourth proportional to 517,656.03, 776,562.39 and 162,636.63 is: 243,979.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,656.03 : 776,562.39 = 162,636.63 : x
  2. Step 2: Convert to fraction form
    517,656.03/776,562.39 = 162,636.63/x
  3. Step 3: Cross multiply
    517,656.03x = 776,562.39 × 162,636.63
  4. Step 4: Simplify right side
    517,656.03x = 126,297,490,094.35
  5. Step 5: Solve for x
    x = 126,297,490,094.35/517,656.03
  6. Step 6: Final answer
    x = 243,979.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.