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Finding the Fourth Proportional to 908,274.36, 1,362,411.54 and 347,365.56

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Solution

The fourth proportional to 908,274.36, 1,362,411.54 and 347,365.56 is: 521,048.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,274.36 : 1,362,411.54 = 347,365.56 : x
  2. Step 2: Convert to fraction form
    908,274.36/1,362,411.54 = 347,365.56/x
  3. Step 3: Cross multiply
    908,274.36x = 1,362,411.54 × 347,365.56
  4. Step 4: Simplify right side
    908,274.36x = 473,254,847,542.56
  5. Step 5: Solve for x
    x = 473,254,847,542.56/908,274.36
  6. Step 6: Final answer
    x = 521,048.34

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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.