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Finding the Fourth Proportional to 624,693.64, 862,077.70 and 338,213.96

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Solution

The fourth proportional to 624,693.64, 862,077.70 and 338,213.96 is: 466,735.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,693.64 : 862,077.70 = 338,213.96 : x
  2. Step 2: Convert to fraction form
    624,693.64/862,077.70 = 338,213.96/x
  3. Step 3: Cross multiply
    624,693.64x = 862,077.70 × 338,213.96
  4. Step 4: Simplify right side
    624,693.64x = 291,566,712,744.69
  5. Step 5: Solve for x
    x = 291,566,712,744.69/624,693.64
  6. Step 6: Final answer
    x = 466,735.52

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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.