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Finding the Fourth Proportional to 629,945.60, 944,918.40 and 551,213.60

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Solution

The fourth proportional to 629,945.60, 944,918.40 and 551,213.60 is: 826,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,945.60 : 944,918.40 = 551,213.60 : x
  2. Step 2: Convert to fraction form
    629,945.60/944,918.40 = 551,213.60/x
  3. Step 3: Cross multiply
    629,945.60x = 944,918.40 × 551,213.60
  4. Step 4: Simplify right side
    629,945.60x = 520,851,872,970.24
  5. Step 5: Solve for x
    x = 520,851,872,970.24/629,945.60
  6. Step 6: Final answer
    x = 826,820.40

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Double scale
Find fourth proportional to 629,946.60, 944,919.90 and 551,214.60
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.