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Finding the Fourth Proportional to 404,871.08, 558,715.74 and 223,578.50

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Solution

The fourth proportional to 404,871.08, 558,715.74 and 223,578.50 is: 308,534.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,871.08 : 558,715.74 = 223,578.50 : x
  2. Step 2: Convert to fraction form
    404,871.08/558,715.74 = 223,578.50/x
  3. Step 3: Cross multiply
    404,871.08x = 558,715.74 × 223,578.50
  4. Step 4: Simplify right side
    404,871.08x = 124,916,827,075.59
  5. Step 5: Solve for x
    x = 124,916,827,075.59/404,871.08
  6. Step 6: Final answer
    x = 308,534.82

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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.