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Finding the Fourth Proportional to 459,015.65, 633,428.95 and 255,061.34

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Solution

The fourth proportional to 459,015.65, 633,428.95 and 255,061.34 is: 351,977.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,015.65 : 633,428.95 = 255,061.34 : x
  2. Step 2: Convert to fraction form
    459,015.65/633,428.95 = 255,061.34/x
  3. Step 3: Cross multiply
    459,015.65x = 633,428.95 × 255,061.34
  4. Step 4: Simplify right side
    459,015.65x = 161,563,236,781.79
  5. Step 5: Solve for x
    x = 161,563,236,781.79/459,015.65
  6. Step 6: Final answer
    x = 351,977.62

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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.