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Finding the Fourth Proportional to 331,776.40, 497,664.60 and 248,832.40

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Solution

The fourth proportional to 331,776.40, 497,664.60 and 248,832.40 is: 373,248.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,776.40 : 497,664.60 = 248,832.40 : x
  2. Step 2: Convert to fraction form
    331,776.40/497,664.60 = 248,832.40/x
  3. Step 3: Cross multiply
    331,776.40x = 497,664.60 × 248,832.40
  4. Step 4: Simplify right side
    331,776.40x = 123,835,076,813.04
  5. Step 5: Solve for x
    x = 123,835,076,813.04/331,776.40
  6. Step 6: Final answer
    x = 373,248.60

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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.