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Finding the Fourth Proportional to 1,191,673.92, 1,786,947.84 and 432,986.52

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Solution

The fourth proportional to 1,191,673.92, 1,786,947.84 and 432,986.52 is: 649,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,673.92 : 1,786,947.84 = 432,986.52 : x
  2. Step 2: Convert to fraction form
    1,191,673.92/1,786,947.84 = 432,986.52/x
  3. Step 3: Cross multiply
    1,191,673.92x = 1,786,947.84 × 432,986.52
  4. Step 4: Simplify right side
    1,191,673.92x = 773,724,326,663.12
  5. Step 5: Solve for x
    x = 773,724,326,663.12/1,191,673.92
  6. Step 6: Final answer
    x = 649,275.20

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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.