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Finding the Fourth Proportional to 440,033.64, 604,911.90 and 378,555.48

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Solution

The fourth proportional to 440,033.64, 604,911.90 and 378,555.48 is: 520,398.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,033.64 : 604,911.90 = 378,555.48 : x
  2. Step 2: Convert to fraction form
    440,033.64/604,911.90 = 378,555.48/x
  3. Step 3: Cross multiply
    440,033.64x = 604,911.90 × 378,555.48
  4. Step 4: Simplify right side
    440,033.64x = 228,992,714,662.21
  5. Step 5: Solve for x
    x = 228,992,714,662.21/440,033.64
  6. Step 6: Final answer
    x = 520,398.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.