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Finding the Fourth Proportional to 624,809.74, 862,236.18 and 338,328.94

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Solution

The fourth proportional to 624,809.74, 862,236.18 and 338,328.94 is: 466,893.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,809.74 : 862,236.18 = 338,328.94 : x
  2. Step 2: Convert to fraction form
    624,809.74/862,236.18 = 338,328.94/x
  3. Step 3: Cross multiply
    624,809.74x = 862,236.18 × 338,328.94
  4. Step 4: Simplify right side
    624,809.74x = 291,719,452,809.05
  5. Step 5: Solve for x
    x = 291,719,452,809.05/624,809.74
  6. Step 6: Final answer
    x = 466,893.25

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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.