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Finding the Fourth Proportional to 620,598.38, 930,897.61 and 199,874.25

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Solution

The fourth proportional to 620,598.38, 930,897.61 and 199,874.25 is: 299,811.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,598.38 : 930,897.61 = 199,874.25 : x
  2. Step 2: Convert to fraction form
    620,598.38/930,897.61 = 199,874.25/x
  3. Step 3: Cross multiply
    620,598.38x = 930,897.61 × 199,874.25
  4. Step 4: Simplify right side
    620,598.38x = 186,062,462,250.15
  5. Step 5: Solve for x
    x = 186,062,462,250.15/620,598.38
  6. Step 6: Final answer
    x = 299,811.39

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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.