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Finding the Fourth Proportional to 620,601.55, 930,902.37 and 199,877.42

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Solution

The fourth proportional to 620,601.55, 930,902.37 and 199,877.42 is: 299,816.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,601.55 : 930,902.37 = 199,877.42 : x
  2. Step 2: Convert to fraction form
    620,601.55/930,902.37 = 199,877.42/x
  3. Step 3: Cross multiply
    620,601.55x = 930,902.37 × 199,877.42
  4. Step 4: Simplify right side
    620,601.55x = 186,066,363,987.49
  5. Step 5: Solve for x
    x = 186,066,363,987.49/620,601.55
  6. Step 6: Final answer
    x = 299,816.15

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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.