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Finding the Third Proportional to 315,088.50 and 484,312.75

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Solution

The third proportional to 315,088.50 and 484,312.75 is: 744,422.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,088.50 : 484,312.75 = 484,312.75 : x
  2. Step 2: Convert to fraction form
    315,088.50/484,312.75 = 484,312.75/x
  3. Step 3: Cross multiply
    315,088.50x = 484,312.75 × 484,312.75
  4. Step 4: Simplify right side
    315,088.50x = 234,558,839,812.56
  5. Step 5: Solve for x
    x = 234,558,839,812.56/315,088.50
  6. Step 6: Final answer
    x = 744,422.09

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.