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Finding the Fourth Proportional to 480,832.64, 663,543.36 and 265,955.84

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Solution

The fourth proportional to 480,832.64, 663,543.36 and 265,955.84 is: 367,015.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,832.64 : 663,543.36 = 265,955.84 : x
  2. Step 2: Convert to fraction form
    480,832.64/663,543.36 = 265,955.84/x
  3. Step 3: Cross multiply
    480,832.64x = 663,543.36 × 265,955.84
  4. Step 4: Simplify right side
    480,832.64x = 176,473,231,685.22
  5. Step 5: Solve for x
    x = 176,473,231,685.22/480,832.64
  6. Step 6: Final answer
    x = 367,015.92

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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.