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Finding the Fourth Proportional to 484,864.32, 669,319.20 and 325,980.48

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Solution

The fourth proportional to 484,864.32, 669,319.20 and 325,980.48 is: 449,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,864.32 : 669,319.20 = 325,980.48 : x
  2. Step 2: Convert to fraction form
    484,864.32/669,319.20 = 325,980.48/x
  3. Step 3: Cross multiply
    484,864.32x = 669,319.20 × 325,980.48
  4. Step 4: Simplify right side
    484,864.32x = 218,184,994,089.22
  5. Step 5: Solve for x
    x = 218,184,994,089.22/484,864.32
  6. Step 6: Final answer
    x = 449,991.85

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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.