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Finding the Fourth Proportional to 605,143.40, 907,715.10 and 184,440.20

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Solution

The fourth proportional to 605,143.40, 907,715.10 and 184,440.20 is: 276,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,143.40 : 907,715.10 = 184,440.20 : x
  2. Step 2: Convert to fraction form
    605,143.40/907,715.10 = 184,440.20/x
  3. Step 3: Cross multiply
    605,143.40x = 907,715.10 × 184,440.20
  4. Step 4: Simplify right side
    605,143.40x = 167,419,154,587.02
  5. Step 5: Solve for x
    x = 167,419,154,587.02/605,143.40
  6. Step 6: Final answer
    x = 276,660.30

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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.