Home / 860,187.60-1,187,051.76-478,211.04

Finding the Fourth Proportional to 860,187.60, 1,187,051.76 and 478,211.04

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Solution

The fourth proportional to 860,187.60, 1,187,051.76 and 478,211.04 is: 659,927.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,187.60 : 1,187,051.76 = 478,211.04 : x
  2. Step 2: Convert to fraction form
    860,187.60/1,187,051.76 = 478,211.04/x
  3. Step 3: Cross multiply
    860,187.60x = 1,187,051.76 × 478,211.04
  4. Step 4: Simplify right side
    860,187.60x = 567,661,256,683.43
  5. Step 5: Solve for x
    x = 567,661,256,683.43/860,187.60
  6. Step 6: Final answer
    x = 659,927.27

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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.