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Finding the Fourth Proportional to 576,903.51, 796,110.09 and 318,776.36

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Solution

The fourth proportional to 576,903.51, 796,110.09 and 318,776.36 is: 439,902.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,903.51 : 796,110.09 = 318,776.36 : x
  2. Step 2: Convert to fraction form
    576,903.51/796,110.09 = 318,776.36/x
  3. Step 3: Cross multiply
    576,903.51x = 796,110.09 × 318,776.36
  4. Step 4: Simplify right side
    576,903.51x = 253,781,075,654.34
  5. Step 5: Solve for x
    x = 253,781,075,654.34/576,903.51
  6. Step 6: Final answer
    x = 439,902.11

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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.