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Finding the Fourth Proportional to 484,922.75, 669,499.76 and 357,376.19

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Solution

The fourth proportional to 484,922.75, 669,499.76 and 357,376.19 is: 493,404.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,922.75 : 669,499.76 = 357,376.19 : x
  2. Step 2: Convert to fraction form
    484,922.75/669,499.76 = 357,376.19/x
  3. Step 3: Cross multiply
    484,922.75x = 669,499.76 × 357,376.19
  4. Step 4: Simplify right side
    484,922.75x = 239,263,270,980.66
  5. Step 5: Solve for x
    x = 239,263,270,980.66/484,922.75
  6. Step 6: Final answer
    x = 493,404.93

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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.