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Finding the Fourth Proportional to 486,001.80, 726,669.90 and 360,030.60

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Solution

The fourth proportional to 486,001.80, 726,669.90 and 360,030.60 is: 538,317.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,001.80 : 726,669.90 = 360,030.60 : x
  2. Step 2: Convert to fraction form
    486,001.80/726,669.90 = 360,030.60/x
  3. Step 3: Cross multiply
    486,001.80x = 726,669.90 × 360,030.60
  4. Step 4: Simplify right side
    486,001.80x = 261,623,400,098.94
  5. Step 5: Solve for x
    x = 261,623,400,098.94/486,001.80
  6. Step 6: Final answer
    x = 538,317.76

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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.