Home / 860,147.64-1,186,957.26-478,147.32

Finding the Fourth Proportional to 860,147.64, 1,186,957.26 and 478,147.32

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Solution

The fourth proportional to 860,147.64, 1,186,957.26 and 478,147.32 is: 659,817.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,147.64 : 1,186,957.26 = 478,147.32 : x
  2. Step 2: Convert to fraction form
    860,147.64/1,186,957.26 = 478,147.32/x
  3. Step 3: Cross multiply
    860,147.64x = 1,186,957.26 × 478,147.32
  4. Step 4: Simplify right side
    860,147.64x = 567,540,432,823.54
  5. Step 5: Solve for x
    x = 567,540,432,823.54/860,147.64
  6. Step 6: Final answer
    x = 659,817.46

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Double scale
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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.