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Finding the Fourth Proportional to 511,029.60, 766,544.40 and 453,948.90

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Solution

The fourth proportional to 511,029.60, 766,544.40 and 453,948.90 is: 680,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,029.60 : 766,544.40 = 453,948.90 : x
  2. Step 2: Convert to fraction form
    511,029.60/766,544.40 = 453,948.90/x
  3. Step 3: Cross multiply
    511,029.60x = 766,544.40 × 453,948.90
  4. Step 4: Simplify right side
    511,029.60x = 347,971,987,181.16
  5. Step 5: Solve for x
    x = 347,971,987,181.16/511,029.60
  6. Step 6: Final answer
    x = 680,923.35

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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.