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Finding the Fourth Proportional to 462,012.80, 637,570.86 and 258,066.56

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Solution

The fourth proportional to 462,012.80, 637,570.86 and 258,066.56 is: 356,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,012.80 : 637,570.86 = 258,066.56 : x
  2. Step 2: Convert to fraction form
    462,012.80/637,570.86 = 258,066.56/x
  3. Step 3: Cross multiply
    462,012.80x = 637,570.86 × 258,066.56
  4. Step 4: Simplify right side
    462,012.80x = 164,535,718,596.44
  5. Step 5: Solve for x
    x = 164,535,718,596.44/462,012.80
  6. Step 6: Final answer
    x = 356,128.05

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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.