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Finding the Fourth Proportional to 364,615.80, 546,923.70 and 342,454.20

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Solution

The fourth proportional to 364,615.80, 546,923.70 and 342,454.20 is: 513,681.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,615.80 : 546,923.70 = 342,454.20 : x
  2. Step 2: Convert to fraction form
    364,615.80/546,923.70 = 342,454.20/x
  3. Step 3: Cross multiply
    364,615.80x = 546,923.70 × 342,454.20
  4. Step 4: Simplify right side
    364,615.80x = 187,296,318,144.54
  5. Step 5: Solve for x
    x = 187,296,318,144.54/364,615.80
  6. Step 6: Final answer
    x = 513,681.30

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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.