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Finding the Fourth Proportional to 622,606.80, 933,910.20 and 307,022.70

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Solution

The fourth proportional to 622,606.80, 933,910.20 and 307,022.70 is: 460,534.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,606.80 : 933,910.20 = 307,022.70 : x
  2. Step 2: Convert to fraction form
    622,606.80/933,910.20 = 307,022.70/x
  3. Step 3: Cross multiply
    622,606.80x = 933,910.20 × 307,022.70
  4. Step 4: Simplify right side
    622,606.80x = 286,731,631,161.54
  5. Step 5: Solve for x
    x = 286,731,631,161.54/622,606.80
  6. Step 6: Final answer
    x = 460,534.05

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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.