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Finding the Fourth Proportional to 614,174.40, 847,549.44 and 345,902.40

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Solution

The fourth proportional to 614,174.40, 847,549.44 and 345,902.40 is: 477,338.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,174.40 : 847,549.44 = 345,902.40 : x
  2. Step 2: Convert to fraction form
    614,174.40/847,549.44 = 345,902.40/x
  3. Step 3: Cross multiply
    614,174.40x = 847,549.44 × 345,902.40
  4. Step 4: Simplify right side
    614,174.40x = 293,169,385,414.66
  5. Step 5: Solve for x
    x = 293,169,385,414.66/614,174.40
  6. Step 6: Final answer
    x = 477,338.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.