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Finding the Fourth Proportional to 860,608.50, 1,187,633.17 and 473,415.59

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Solution

The fourth proportional to 860,608.50, 1,187,633.17 and 473,415.59 is: 653,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,608.50 : 1,187,633.17 = 473,415.59 : x
  2. Step 2: Convert to fraction form
    860,608.50/1,187,633.17 = 473,415.59/x
  3. Step 3: Cross multiply
    860,608.50x = 1,187,633.17 × 473,415.59
  4. Step 4: Simplify right side
    860,608.50x = 562,244,052,762.29
  5. Step 5: Solve for x
    x = 562,244,052,762.29/860,608.50
  6. Step 6: Final answer
    x = 653,309.90

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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.