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Finding the Fourth Proportional to 532,145.60, 798,218.40 and 511,150.40

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Solution

The fourth proportional to 532,145.60, 798,218.40 and 511,150.40 is: 766,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,145.60 : 798,218.40 = 511,150.40 : x
  2. Step 2: Convert to fraction form
    532,145.60/798,218.40 = 511,150.40/x
  3. Step 3: Cross multiply
    532,145.60x = 798,218.40 × 511,150.40
  4. Step 4: Simplify right side
    532,145.60x = 408,009,654,447.36
  5. Step 5: Solve for x
    x = 408,009,654,447.36/532,145.60
  6. Step 6: Final answer
    x = 766,725.60

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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.