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Finding the Fourth Proportional to 400,824.80, 601,237.20 and 368,165.60

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Solution

The fourth proportional to 400,824.80, 601,237.20 and 368,165.60 is: 552,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,824.80 : 601,237.20 = 368,165.60 : x
  2. Step 2: Convert to fraction form
    400,824.80/601,237.20 = 368,165.60/x
  3. Step 3: Cross multiply
    400,824.80x = 601,237.20 × 368,165.60
  4. Step 4: Simplify right side
    400,824.80x = 221,354,854,480.32
  5. Step 5: Solve for x
    x = 221,354,854,480.32/400,824.80
  6. Step 6: Final answer
    x = 552,248.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.