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Finding the Fourth Proportional to 560,710.94, 773,774.30 and 318,992.96

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Solution

The fourth proportional to 560,710.94, 773,774.30 and 318,992.96 is: 440,206.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,710.94 : 773,774.30 = 318,992.96 : x
  2. Step 2: Convert to fraction form
    560,710.94/773,774.30 = 318,992.96/x
  3. Step 3: Cross multiply
    560,710.94x = 773,774.30 × 318,992.96
  4. Step 4: Simplify right side
    560,710.94x = 246,828,554,328.93
  5. Step 5: Solve for x
    x = 246,828,554,328.93/560,710.94
  6. Step 6: Final answer
    x = 440,206.42

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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.