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Finding the Fourth Proportional to 885,809.86, 1,328,071.09 and 353,171.14

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Solution

The fourth proportional to 885,809.86, 1,328,071.09 and 353,171.14 is: 529,500.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,809.86 : 1,328,071.09 = 353,171.14 : x
  2. Step 2: Convert to fraction form
    885,809.86/1,328,071.09 = 353,171.14/x
  3. Step 3: Cross multiply
    885,809.86x = 1,328,071.09 × 353,171.14
  4. Step 4: Simplify right side
    885,809.86x = 469,036,380,856.34
  5. Step 5: Solve for x
    x = 469,036,380,856.34/885,809.86
  6. Step 6: Final answer
    x = 529,500.07

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Double scale
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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.