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Finding the Fourth Proportional to 370,406.80, 555,610.20 and 364,501.90

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Solution

The fourth proportional to 370,406.80, 555,610.20 and 364,501.90 is: 546,752.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,406.80 : 555,610.20 = 364,501.90 : x
  2. Step 2: Convert to fraction form
    370,406.80/555,610.20 = 364,501.90/x
  3. Step 3: Cross multiply
    370,406.80x = 555,610.20 × 364,501.90
  4. Step 4: Simplify right side
    370,406.80x = 202,520,973,559.38
  5. Step 5: Solve for x
    x = 202,520,973,559.38/370,406.80
  6. Step 6: Final answer
    x = 546,752.85

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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.