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Finding the Fourth Proportional to 591,284.40, 886,926.60 and 404,660.40

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Solution

The fourth proportional to 591,284.40, 886,926.60 and 404,660.40 is: 606,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,284.40 : 886,926.60 = 404,660.40 : x
  2. Step 2: Convert to fraction form
    591,284.40/886,926.60 = 404,660.40/x
  3. Step 3: Cross multiply
    591,284.40x = 886,926.60 × 404,660.40
  4. Step 4: Simplify right side
    591,284.40x = 358,904,072,726.64
  5. Step 5: Solve for x
    x = 358,904,072,726.64/591,284.40
  6. Step 6: Final answer
    x = 606,990.60

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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.