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Finding the Fourth Proportional to 624,639.96, 862,003.44 and 338,160.06

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Solution

The fourth proportional to 624,639.96, 862,003.44 and 338,160.06 is: 466,661.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,639.96 : 862,003.44 = 338,160.06 : x
  2. Step 2: Convert to fraction form
    624,639.96/862,003.44 = 338,160.06/x
  3. Step 3: Cross multiply
    624,639.96x = 862,003.44 × 338,160.06
  4. Step 4: Simplify right side
    624,639.96x = 291,495,134,990.61
  5. Step 5: Solve for x
    x = 291,495,134,990.61/624,639.96
  6. Step 6: Final answer
    x = 466,661.04

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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.