Home / 860,592.60-1,187,600.92-478,611.16

Finding the Fourth Proportional to 860,592.60, 1,187,600.92 and 478,611.16

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Solution

The fourth proportional to 860,592.60, 1,187,600.92 and 478,611.16 is: 660,474.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,592.60 : 1,187,600.92 = 478,611.16 : x
  2. Step 2: Convert to fraction form
    860,592.60/1,187,600.92 = 478,611.16/x
  3. Step 3: Cross multiply
    860,592.60x = 1,187,600.92 × 478,611.16
  4. Step 4: Simplify right side
    860,592.60x = 568,399,053,938.27
  5. Step 5: Solve for x
    x = 568,399,053,938.27/860,592.60
  6. Step 6: Final answer
    x = 660,474.02

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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.