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Finding the Fourth Proportional to 482,829.80, 724,935.90 and 272,877.80

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Solution

The fourth proportional to 482,829.80, 724,935.90 and 272,877.80 is: 409,707.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,829.80 : 724,935.90 = 272,877.80 : x
  2. Step 2: Convert to fraction form
    482,829.80/724,935.90 = 272,877.80/x
  3. Step 3: Cross multiply
    482,829.80x = 724,935.90 × 272,877.80
  4. Step 4: Simplify right side
    482,829.80x = 197,818,913,533.02
  5. Step 5: Solve for x
    x = 197,818,913,533.02/482,829.80
  6. Step 6: Final answer
    x = 409,707.34

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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.