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Finding the Fourth Proportional to 548,267.86, 756,574.59 and 306,570.34

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Solution

The fourth proportional to 548,267.86, 756,574.59 and 306,570.34 is: 423,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,267.86 : 756,574.59 = 306,570.34 : x
  2. Step 2: Convert to fraction form
    548,267.86/756,574.59 = 306,570.34/x
  3. Step 3: Cross multiply
    548,267.86x = 756,574.59 × 306,570.34
  4. Step 4: Simplify right side
    548,267.86x = 231,943,329,291.66
  5. Step 5: Solve for x
    x = 231,943,329,291.66/548,267.86
  6. Step 6: Final answer
    x = 423,047.47

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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.