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Finding the Fourth Proportional to 516,412.20, 774,618.30 and 496,729.20

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Solution

The fourth proportional to 516,412.20, 774,618.30 and 496,729.20 is: 745,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,412.20 : 774,618.30 = 496,729.20 : x
  2. Step 2: Convert to fraction form
    516,412.20/774,618.30 = 496,729.20/x
  3. Step 3: Cross multiply
    516,412.20x = 774,618.30 × 496,729.20
  4. Step 4: Simplify right side
    516,412.20x = 384,775,528,464.36
  5. Step 5: Solve for x
    x = 384,775,528,464.36/516,412.20
  6. Step 6: Final answer
    x = 745,093.80

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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.