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Finding the Fourth Proportional to 558,509.40, 837,764.10 and 401,045.40

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Solution

The fourth proportional to 558,509.40, 837,764.10 and 401,045.40 is: 601,568.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,509.40 : 837,764.10 = 401,045.40 : x
  2. Step 2: Convert to fraction form
    558,509.40/837,764.10 = 401,045.40/x
  3. Step 3: Cross multiply
    558,509.40x = 837,764.10 × 401,045.40
  4. Step 4: Simplify right side
    558,509.40x = 335,981,438,590.14
  5. Step 5: Solve for x
    x = 335,981,438,590.14/558,509.40
  6. Step 6: Final answer
    x = 601,568.10

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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.