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Finding the Fourth Proportional to 415,722.30, 623,583.45 and 410,192.70

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Solution

The fourth proportional to 415,722.30, 623,583.45 and 410,192.70 is: 615,289.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,722.30 : 623,583.45 = 410,192.70 : x
  2. Step 2: Convert to fraction form
    415,722.30/623,583.45 = 410,192.70/x
  3. Step 3: Cross multiply
    415,722.30x = 623,583.45 × 410,192.70
  4. Step 4: Simplify right side
    415,722.30x = 255,789,379,030.82
  5. Step 5: Solve for x
    x = 255,789,379,030.82/415,722.30
  6. Step 6: Final answer
    x = 615,289.05

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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.