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Finding the Fourth Proportional to 545,226.82, 752,360.25 and 402,063.94

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Solution

The fourth proportional to 545,226.82, 752,360.25 and 402,063.94 is: 554,809.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,226.82 : 752,360.25 = 402,063.94 : x
  2. Step 2: Convert to fraction form
    545,226.82/752,360.25 = 402,063.94/x
  3. Step 3: Cross multiply
    545,226.82x = 752,360.25 × 402,063.94
  4. Step 4: Simplify right side
    545,226.82x = 302,496,926,414.39
  5. Step 5: Solve for x
    x = 302,496,926,414.39/545,226.82
  6. Step 6: Final answer
    x = 554,809.33

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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.