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Finding the Fourth Proportional to 540,768.96, 811,267.65 and 203,802.48

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Solution

The fourth proportional to 540,768.96, 811,267.65 and 203,802.48 is: 305,746.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,768.96 : 811,267.65 = 203,802.48 : x
  2. Step 2: Convert to fraction form
    540,768.96/811,267.65 = 203,802.48/x
  3. Step 3: Cross multiply
    540,768.96x = 811,267.65 × 203,802.48
  4. Step 4: Simplify right side
    540,768.96x = 165,338,359,013.77
  5. Step 5: Solve for x
    x = 165,338,359,013.77/540,768.96
  6. Step 6: Final answer
    x = 305,746.76

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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.