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Finding the Fourth Proportional to 936,405, 1,404,275.40 and 337,205.34

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Solution

The fourth proportional to 936,405, 1,404,275.40 and 337,205.34 is: 505,688.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,405 : 1,404,275.40 = 337,205.34 : x
  2. Step 2: Convert to fraction form
    936,405/1,404,275.40 = 337,205.34/x
  3. Step 3: Cross multiply
    936,405x = 1,404,275.40 × 337,205.34
  4. Step 4: Simplify right side
    936,405x = 473,529,163,710.64
  5. Step 5: Solve for x
    x = 473,529,163,710.64/936,405
  6. Step 6: Final answer
    x = 505,688.42

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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.