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Finding the Fourth Proportional to 624,794.48, 862,220.40 and 338,316.96

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Solution

The fourth proportional to 624,794.48, 862,220.40 and 338,316.96 is: 466,879.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,794.48 : 862,220.40 = 338,316.96 : x
  2. Step 2: Convert to fraction form
    624,794.48/862,220.40 = 338,316.96/x
  3. Step 3: Cross multiply
    624,794.48x = 862,220.40 × 338,316.96
  4. Step 4: Simplify right side
    624,794.48x = 291,703,784,577.98
  5. Step 5: Solve for x
    x = 291,703,784,577.98/624,794.48
  6. Step 6: Final answer
    x = 466,879.58

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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.