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Finding the Fourth Proportional to 560,303.48, 773,217.76 and 305,654.60

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Solution

The fourth proportional to 560,303.48, 773,217.76 and 305,654.60 is: 421,802.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,303.48 : 773,217.76 = 305,654.60 : x
  2. Step 2: Convert to fraction form
    560,303.48/773,217.76 = 305,654.60/x
  3. Step 3: Cross multiply
    560,303.48x = 773,217.76 × 305,654.60
  4. Step 4: Simplify right side
    560,303.48x = 236,337,565,145.70
  5. Step 5: Solve for x
    x = 236,337,565,145.70/560,303.48
  6. Step 6: Final answer
    x = 421,802.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.