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Finding the Fourth Proportional to 618,303.80, 927,543.74 and 191,876.48

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Solution

The fourth proportional to 618,303.80, 927,543.74 and 191,876.48 is: 287,842.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,303.80 : 927,543.74 = 191,876.48 : x
  2. Step 2: Convert to fraction form
    618,303.80/927,543.74 = 191,876.48/x
  3. Step 3: Cross multiply
    618,303.80x = 927,543.74 × 191,876.48
  4. Step 4: Simplify right side
    618,303.80x = 177,973,822,280.13
  5. Step 5: Solve for x
    x = 177,973,822,280.13/618,303.80
  6. Step 6: Final answer
    x = 287,842.03

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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.