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Finding the Fourth Proportional to 369,539.80, 554,309.70 and 366,040.60

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Solution

The fourth proportional to 369,539.80, 554,309.70 and 366,040.60 is: 549,060.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,539.80 : 554,309.70 = 366,040.60 : x
  2. Step 2: Convert to fraction form
    369,539.80/554,309.70 = 366,040.60/x
  3. Step 3: Cross multiply
    369,539.80x = 554,309.70 × 366,040.60
  4. Step 4: Simplify right side
    369,539.80x = 202,899,855,173.82
  5. Step 5: Solve for x
    x = 202,899,855,173.82/369,539.80
  6. Step 6: Final answer
    x = 549,060.90

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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.