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Finding the Fourth Proportional to 410,003.80, 614,487.30 and 365,421.40

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Solution

The fourth proportional to 410,003.80, 614,487.30 and 365,421.40 is: 547,670.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,003.80 : 614,487.30 = 365,421.40 : x
  2. Step 2: Convert to fraction form
    410,003.80/614,487.30 = 365,421.40/x
  3. Step 3: Cross multiply
    410,003.80x = 614,487.30 × 365,421.40
  4. Step 4: Simplify right side
    410,003.80x = 224,546,809,448.22
  5. Step 5: Solve for x
    x = 224,546,809,448.22/410,003.80
  6. Step 6: Final answer
    x = 547,670.07

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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.