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Finding the Fourth Proportional to 860,997, 1,188,186.74 and 473,856.98

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Solution

The fourth proportional to 860,997, 1,188,186.74 and 473,856.98 is: 653,928.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,997 : 1,188,186.74 = 473,856.98 : x
  2. Step 2: Convert to fraction form
    860,997/1,188,186.74 = 473,856.98/x
  3. Step 3: Cross multiply
    860,997x = 1,188,186.74 × 473,856.98
  4. Step 4: Simplify right side
    860,997x = 563,030,580,292.45
  5. Step 5: Solve for x
    x = 563,030,580,292.45/860,997
  6. Step 6: Final answer
    x = 653,928.62

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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.