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Finding the Fourth Proportional to 539,386.70, 809,080.05 and 223,810.70

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Solution

The fourth proportional to 539,386.70, 809,080.05 and 223,810.70 is: 335,716.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,386.70 : 809,080.05 = 223,810.70 : x
  2. Step 2: Convert to fraction form
    539,386.70/809,080.05 = 223,810.70/x
  3. Step 3: Cross multiply
    539,386.70x = 809,080.05 × 223,810.70
  4. Step 4: Simplify right side
    539,386.70x = 181,080,772,346.54
  5. Step 5: Solve for x
    x = 181,080,772,346.54/539,386.70
  6. Step 6: Final answer
    x = 335,716.05

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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.