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Finding the Fourth Proportional to 404,995.87, 554,037.25 and 403,290.01

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Solution

The fourth proportional to 404,995.87, 554,037.25 and 403,290.01 is: 551,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,995.87 : 554,037.25 = 403,290.01 : x
  2. Step 2: Convert to fraction form
    404,995.87/554,037.25 = 403,290.01/x
  3. Step 3: Cross multiply
    404,995.87x = 554,037.25 × 403,290.01
  4. Step 4: Simplify right side
    404,995.87x = 223,437,688,092.87
  5. Step 5: Solve for x
    x = 223,437,688,092.87/404,995.87
  6. Step 6: Final answer
    x = 551,703.62

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.