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Finding the Fourth Proportional to 860,608.77, 1,187,633.53 and 473,415.86

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Solution

The fourth proportional to 860,608.77, 1,187,633.53 and 473,415.86 is: 653,310.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,608.77 : 1,187,633.53 = 473,415.86 : x
  2. Step 2: Convert to fraction form
    860,608.77/1,187,633.53 = 473,415.86/x
  3. Step 3: Cross multiply
    860,608.77x = 1,187,633.53 × 473,415.86
  4. Step 4: Simplify right side
    860,608.77x = 562,244,548,969.79
  5. Step 5: Solve for x
    x = 562,244,548,969.79/860,608.77
  6. Step 6: Final answer
    x = 653,310.27

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1.5x scale

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.