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Finding the Fourth Proportional to 865,843.75, 1,194,842.10 and 483,873.67

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Solution

The fourth proportional to 865,843.75, 1,194,842.10 and 483,873.67 is: 667,733.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,843.75 : 1,194,842.10 = 483,873.67 : x
  2. Step 2: Convert to fraction form
    865,843.75/1,194,842.10 = 483,873.67/x
  3. Step 3: Cross multiply
    865,843.75x = 1,194,842.10 × 483,873.67
  4. Step 4: Simplify right side
    865,843.75x = 578,152,631,997.51
  5. Step 5: Solve for x
    x = 578,152,631,997.51/865,843.75
  6. Step 6: Final answer
    x = 667,733.22

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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.