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Finding the Fourth Proportional to 651,152.80, 898,638.42 and 393,093.19

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Solution

The fourth proportional to 651,152.80, 898,638.42 and 393,093.19 is: 542,497.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,152.80 : 898,638.42 = 393,093.19 : x
  2. Step 2: Convert to fraction form
    651,152.80/898,638.42 = 393,093.19/x
  3. Step 3: Cross multiply
    651,152.80x = 898,638.42 × 393,093.19
  4. Step 4: Simplify right side
    651,152.80x = 353,248,643,174.36
  5. Step 5: Solve for x
    x = 353,248,643,174.36/651,152.80
  6. Step 6: Final answer
    x = 542,497.31

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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.