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Finding the Fourth Proportional to 703,998.59, 971,524.48 and 381,709.51

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Solution

The fourth proportional to 703,998.59, 971,524.48 and 381,709.51 is: 526,762.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,998.59 : 971,524.48 = 381,709.51 : x
  2. Step 2: Convert to fraction form
    703,998.59/971,524.48 = 381,709.51/x
  3. Step 3: Cross multiply
    703,998.59x = 971,524.48 × 381,709.51
  4. Step 4: Simplify right side
    703,998.59x = 370,840,136,011.25
  5. Step 5: Solve for x
    x = 370,840,136,011.25/703,998.59
  6. Step 6: Final answer
    x = 526,762.61

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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.