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Finding the Fourth Proportional to 587,892.83, 811,464.77 and 383,974.93

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Solution

The fourth proportional to 587,892.83, 811,464.77 and 383,974.93 is: 529,998.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,892.83 : 811,464.77 = 383,974.93 : x
  2. Step 2: Convert to fraction form
    587,892.83/811,464.77 = 383,974.93/x
  3. Step 3: Cross multiply
    587,892.83x = 811,464.77 × 383,974.93
  4. Step 4: Simplify right side
    587,892.83x = 311,582,122,281.02
  5. Step 5: Solve for x
    x = 311,582,122,281.02/587,892.83
  6. Step 6: Final answer
    x = 529,998.17

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Double scale
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1.5x scale

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.