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Finding the Fourth Proportional to 653,309.20, 901,511.40 and 366,806.80

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Solution

The fourth proportional to 653,309.20, 901,511.40 and 366,806.80 is: 506,162.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,309.20 : 901,511.40 = 366,806.80 : x
  2. Step 2: Convert to fraction form
    653,309.20/901,511.40 = 366,806.80/x
  3. Step 3: Cross multiply
    653,309.20x = 901,511.40 × 366,806.80
  4. Step 4: Simplify right side
    653,309.20x = 330,680,511,797.52
  5. Step 5: Solve for x
    x = 330,680,511,797.52/653,309.20
  6. Step 6: Final answer
    x = 506,162.34

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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.