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Finding the Fourth Proportional to 403,902.30, 605,853.45 and 277,931.10

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Solution

The fourth proportional to 403,902.30, 605,853.45 and 277,931.10 is: 416,896.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,902.30 : 605,853.45 = 277,931.10 : x
  2. Step 2: Convert to fraction form
    403,902.30/605,853.45 = 277,931.10/x
  3. Step 3: Cross multiply
    403,902.30x = 605,853.45 × 277,931.10
  4. Step 4: Simplify right side
    403,902.30x = 168,385,515,797.30
  5. Step 5: Solve for x
    x = 168,385,515,797.30/403,902.30
  6. Step 6: Final answer
    x = 416,896.65

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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.