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Finding the Fourth Proportional to 501,179.95, 752,411.72 and 430,554.43

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Solution

The fourth proportional to 501,179.95, 752,411.72 and 430,554.43 is: 646,383.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,179.95 : 752,411.72 = 430,554.43 : x
  2. Step 2: Convert to fraction form
    501,179.95/752,411.72 = 430,554.43/x
  3. Step 3: Cross multiply
    501,179.95x = 752,411.72 × 430,554.43
  4. Step 4: Simplify right side
    501,179.95x = 323,954,199,229.92
  5. Step 5: Solve for x
    x = 323,954,199,229.92/501,179.95
  6. Step 6: Final answer
    x = 646,383.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.