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Finding the Fourth Proportional to 583,654.79, 805,306.48 and 354,206.98

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Solution

The fourth proportional to 583,654.79, 805,306.48 and 354,206.98 is: 488,722.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,654.79 : 805,306.48 = 354,206.98 : x
  2. Step 2: Convert to fraction form
    583,654.79/805,306.48 = 354,206.98/x
  3. Step 3: Cross multiply
    583,654.79x = 805,306.48 × 354,206.98
  4. Step 4: Simplify right side
    583,654.79x = 285,245,172,842.70
  5. Step 5: Solve for x
    x = 285,245,172,842.70/583,654.79
  6. Step 6: Final answer
    x = 488,722.41

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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.