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Finding the Fourth Proportional to 558,718.38, 771,016.59 and 304,064.10

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Solution

The fourth proportional to 558,718.38, 771,016.59 and 304,064.10 is: 419,600.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,718.38 : 771,016.59 = 304,064.10 : x
  2. Step 2: Convert to fraction form
    558,718.38/771,016.59 = 304,064.10/x
  3. Step 3: Cross multiply
    558,718.38x = 771,016.59 × 304,064.10
  4. Step 4: Simplify right side
    558,718.38x = 234,438,465,523.42
  5. Step 5: Solve for x
    x = 234,438,465,523.42/558,718.38
  6. Step 6: Final answer
    x = 419,600.42

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Double scale
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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.