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Finding the Fourth Proportional to 519,444.30, 716,996.43 and 304,671.18

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Solution

The fourth proportional to 519,444.30, 716,996.43 and 304,671.18 is: 420,542.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,444.30 : 716,996.43 = 304,671.18 : x
  2. Step 2: Convert to fraction form
    519,444.30/716,996.43 = 304,671.18/x
  3. Step 3: Cross multiply
    519,444.30x = 716,996.43 × 304,671.18
  4. Step 4: Simplify right side
    519,444.30x = 218,448,148,383.89
  5. Step 5: Solve for x
    x = 218,448,148,383.89/519,444.30
  6. Step 6: Final answer
    x = 420,542.01

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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.