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Finding the Fourth Proportional to 497,245.70, 745,868.55 and 418,513.70

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Solution

The fourth proportional to 497,245.70, 745,868.55 and 418,513.70 is: 627,770.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,245.70 : 745,868.55 = 418,513.70 : x
  2. Step 2: Convert to fraction form
    497,245.70/745,868.55 = 418,513.70/x
  3. Step 3: Cross multiply
    497,245.70x = 745,868.55 × 418,513.70
  4. Step 4: Simplify right side
    497,245.70x = 312,156,206,574.14
  5. Step 5: Solve for x
    x = 312,156,206,574.14/497,245.70
  6. Step 6: Final answer
    x = 627,770.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.