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Finding the Fourth Proportional to 769,693.68, 1,061,489.52 and 483,240.48

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Solution

The fourth proportional to 769,693.68, 1,061,489.52 and 483,240.48 is: 666,440.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,693.68 : 1,061,489.52 = 483,240.48 : x
  2. Step 2: Convert to fraction form
    769,693.68/1,061,489.52 = 483,240.48/x
  3. Step 3: Cross multiply
    769,693.68x = 1,061,489.52 × 483,240.48
  4. Step 4: Simplify right side
    769,693.68x = 512,954,705,159.77
  5. Step 5: Solve for x
    x = 512,954,705,159.77/769,693.68
  6. Step 6: Final answer
    x = 666,440.06

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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.