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Finding the Fourth Proportional to 484,927.25, 669,505.98 and 357,380.69

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Solution

The fourth proportional to 484,927.25, 669,505.98 and 357,380.69 is: 493,411.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,927.25 : 669,505.98 = 357,380.69 : x
  2. Step 2: Convert to fraction form
    484,927.25/669,505.98 = 357,380.69/x
  3. Step 3: Cross multiply
    484,927.25x = 669,505.98 × 357,380.69
  4. Step 4: Simplify right side
    484,927.25x = 239,268,509,091.53
  5. Step 5: Solve for x
    x = 239,268,509,091.53/484,927.25
  6. Step 6: Final answer
    x = 493,411.14

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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.