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Finding the Fourth Proportional to 452,362.12, 624,261.43 and 245,630.78

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Solution

The fourth proportional to 452,362.12, 624,261.43 and 245,630.78 is: 338,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,362.12 : 624,261.43 = 245,630.78 : x
  2. Step 2: Convert to fraction form
    452,362.12/624,261.43 = 245,630.78/x
  3. Step 3: Cross multiply
    452,362.12x = 624,261.43 × 245,630.78
  4. Step 4: Simplify right side
    452,362.12x = 153,337,820,997.72
  5. Step 5: Solve for x
    x = 153,337,820,997.72/452,362.12
  6. Step 6: Final answer
    x = 338,971.40

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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.