Home / 860,470.80-1,290,706.20-577,035.60

Finding the Fourth Proportional to 860,470.80, 1,290,706.20 and 577,035.60

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Solution

The fourth proportional to 860,470.80, 1,290,706.20 and 577,035.60 is: 865,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,470.80 : 1,290,706.20 = 577,035.60 : x
  2. Step 2: Convert to fraction form
    860,470.80/1,290,706.20 = 577,035.60/x
  3. Step 3: Cross multiply
    860,470.80x = 1,290,706.20 × 577,035.60
  4. Step 4: Simplify right side
    860,470.80x = 744,783,426,540.72
  5. Step 5: Solve for x
    x = 744,783,426,540.72/860,470.80
  6. Step 6: Final answer
    x = 865,553.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.