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Finding the Fourth Proportional to 577,403.40, 866,234.70 and 340,624.20

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Solution

The fourth proportional to 577,403.40, 866,234.70 and 340,624.20 is: 511,012.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,403.40 : 866,234.70 = 340,624.20 : x
  2. Step 2: Convert to fraction form
    577,403.40/866,234.70 = 340,624.20/x
  3. Step 3: Cross multiply
    577,403.40x = 866,234.70 × 340,624.20
  4. Step 4: Simplify right side
    577,403.40x = 295,060,501,699.74
  5. Step 5: Solve for x
    x = 295,060,501,699.74/577,403.40
  6. Step 6: Final answer
    x = 511,012.75

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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.