Home / 644,492.80-966,739.20-551,180.80

Finding the Fourth Proportional to 644,492.80, 966,739.20 and 551,180.80

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Solution

The fourth proportional to 644,492.80, 966,739.20 and 551,180.80 is: 826,771.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,492.80 : 966,739.20 = 551,180.80 : x
  2. Step 2: Convert to fraction form
    644,492.80/966,739.20 = 551,180.80/x
  3. Step 3: Cross multiply
    644,492.80x = 966,739.20 × 551,180.80
  4. Step 4: Simplify right side
    644,492.80x = 532,848,085,647.36
  5. Step 5: Solve for x
    x = 532,848,085,647.36/644,492.80
  6. Step 6: Final answer
    x = 826,771.20

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Half scale
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Double scale
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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.