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Finding the Fourth Proportional to 4,997,786.76, 7,495,128.81 and 1,802,497.77

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Solution

The fourth proportional to 4,997,786.76, 7,495,128.81 and 1,802,497.77 is: 2,703,187.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,997,786.76 : 7,495,128.81 = 1,802,497.77 : x
  2. Step 2: Convert to fraction form
    4,997,786.76/7,495,128.81 = 1,802,497.77/x
  3. Step 3: Cross multiply
    4,997,786.76x = 7,495,128.81 × 1,802,497.77
  4. Step 4: Simplify right side
    4,997,786.76x = 13,509,952,965,887.75
  5. Step 5: Solve for x
    x = 13,509,952,965,887.75/4,997,786.76
  6. Step 6: Final answer
    x = 2,703,187.15

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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.