Home / 465,856.86-642,867.56-261,916.40

Finding the Fourth Proportional to 465,856.86, 642,867.56 and 261,916.40

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Solution

The fourth proportional to 465,856.86, 642,867.56 and 261,916.40 is: 361,436.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,856.86 : 642,867.56 = 261,916.40 : x
  2. Step 2: Convert to fraction form
    465,856.86/642,867.56 = 261,916.40/x
  3. Step 3: Cross multiply
    465,856.86x = 642,867.56 × 261,916.40
  4. Step 4: Simplify right side
    465,856.86x = 168,377,556,991.98
  5. Step 5: Solve for x
    x = 168,377,556,991.98/465,856.86
  6. Step 6: Final answer
    x = 361,436.25

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1.5x scale

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.