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Finding the Fourth Proportional to 629,741.40, 944,612.10 and 551,009.40

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Solution

The fourth proportional to 629,741.40, 944,612.10 and 551,009.40 is: 826,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,741.40 : 944,612.10 = 551,009.40 : x
  2. Step 2: Convert to fraction form
    629,741.40/944,612.10 = 551,009.40/x
  3. Step 3: Cross multiply
    629,741.40x = 944,612.10 × 551,009.40
  4. Step 4: Simplify right side
    629,741.40x = 520,490,146,453.74
  5. Step 5: Solve for x
    x = 520,490,146,453.74/629,741.40
  6. Step 6: Final answer
    x = 826,514.10

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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.