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Finding the Fourth Proportional to 622,777.20, 934,165.80 and 373,945.20

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Solution

The fourth proportional to 622,777.20, 934,165.80 and 373,945.20 is: 560,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,777.20 : 934,165.80 = 373,945.20 : x
  2. Step 2: Convert to fraction form
    622,777.20/934,165.80 = 373,945.20/x
  3. Step 3: Cross multiply
    622,777.20x = 934,165.80 × 373,945.20
  4. Step 4: Simplify right side
    622,777.20x = 349,326,816,914.16
  5. Step 5: Solve for x
    x = 349,326,816,914.16/622,777.20
  6. Step 6: Final answer
    x = 560,917.80

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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.