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Finding the Fourth Proportional to 539,530.80, 809,296.20 and 516,494.40

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Solution

The fourth proportional to 539,530.80, 809,296.20 and 516,494.40 is: 774,741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,530.80 : 809,296.20 = 516,494.40 : x
  2. Step 2: Convert to fraction form
    539,530.80/809,296.20 = 516,494.40/x
  3. Step 3: Cross multiply
    539,530.80x = 809,296.20 × 516,494.40
  4. Step 4: Simplify right side
    539,530.80x = 417,996,955,241.28
  5. Step 5: Solve for x
    x = 417,996,955,241.28/539,530.80
  6. Step 6: Final answer
    x = 774,741.60

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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.