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Finding the Fourth Proportional to 369,615.80, 554,423.70 and 341,622.20

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Solution

The fourth proportional to 369,615.80, 554,423.70 and 341,622.20 is: 512,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,615.80 : 554,423.70 = 341,622.20 : x
  2. Step 2: Convert to fraction form
    369,615.80/554,423.70 = 341,622.20/x
  3. Step 3: Cross multiply
    369,615.80x = 554,423.70 × 341,622.20
  4. Step 4: Simplify right side
    369,615.80x = 189,403,444,126.14
  5. Step 5: Solve for x
    x = 189,403,444,126.14/369,615.80
  6. Step 6: Final answer
    x = 512,433.30

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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.