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Finding the Fourth Proportional to 485,043.30, 727,564.95 and 366,945.30

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Solution

The fourth proportional to 485,043.30, 727,564.95 and 366,945.30 is: 550,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,043.30 : 727,564.95 = 366,945.30 : x
  2. Step 2: Convert to fraction form
    485,043.30/727,564.95 = 366,945.30/x
  3. Step 3: Cross multiply
    485,043.30x = 727,564.95 × 366,945.30
  4. Step 4: Simplify right side
    485,043.30x = 266,976,538,847.24
  5. Step 5: Solve for x
    x = 266,976,538,847.24/485,043.30
  6. Step 6: Final answer
    x = 550,417.95

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1.5x scale

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.