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Finding the Fourth Proportional to 510,097.20, 765,145.80 and 273,901.20

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Solution

The fourth proportional to 510,097.20, 765,145.80 and 273,901.20 is: 410,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,097.20 : 765,145.80 = 273,901.20 : x
  2. Step 2: Convert to fraction form
    510,097.20/765,145.80 = 273,901.20/x
  3. Step 3: Cross multiply
    510,097.20x = 765,145.80 × 273,901.20
  4. Step 4: Simplify right side
    510,097.20x = 209,574,352,794.96
  5. Step 5: Solve for x
    x = 209,574,352,794.96/510,097.20
  6. Step 6: Final answer
    x = 410,851.80

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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.