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Finding the Fourth Proportional to 618,191.58, 927,420.54 and 191,718.81

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Solution

The fourth proportional to 618,191.58, 927,420.54 and 191,718.81 is: 287,619.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,191.58 : 927,420.54 = 191,718.81 : x
  2. Step 2: Convert to fraction form
    618,191.58/927,420.54 = 191,718.81/x
  3. Step 3: Cross multiply
    618,191.58x = 927,420.54 × 191,718.81
  4. Step 4: Simplify right side
    618,191.58x = 177,803,962,298.36
  5. Step 5: Solve for x
    x = 177,803,962,298.36/618,191.58
  6. Step 6: Final answer
    x = 287,619.51

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1.5x scale

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.