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Finding the Fourth Proportional to 568,047.06, 783,907.47 and 313,405.74

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Solution

The fourth proportional to 568,047.06, 783,907.47 and 313,405.74 is: 432,501.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,047.06 : 783,907.47 = 313,405.74 : x
  2. Step 2: Convert to fraction form
    568,047.06/783,907.47 = 313,405.74/x
  3. Step 3: Cross multiply
    568,047.06x = 783,907.47 × 313,405.74
  4. Step 4: Simplify right side
    568,047.06x = 245,681,100,726.88
  5. Step 5: Solve for x
    x = 245,681,100,726.88/568,047.06
  6. Step 6: Final answer
    x = 432,501.32

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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.