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Finding the Fourth Proportional to 886,970.92, 1,224,019.46 and 479,072.68

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Solution

The fourth proportional to 886,970.92, 1,224,019.46 and 479,072.68 is: 661,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,970.92 : 1,224,019.46 = 479,072.68 : x
  2. Step 2: Convert to fraction form
    886,970.92/1,224,019.46 = 479,072.68/x
  3. Step 3: Cross multiply
    886,970.92x = 1,224,019.46 × 479,072.68
  4. Step 4: Simplify right side
    886,970.92x = 586,394,283,074.35
  5. Step 5: Solve for x
    x = 586,394,283,074.35/886,970.92
  6. Step 6: Final answer
    x = 661,120.08

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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.