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Finding the Fourth Proportional to 423,852.75, 584,657.19 and 251,653.77

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Solution

The fourth proportional to 423,852.75, 584,657.19 and 251,653.77 is: 347,128.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,852.75 : 584,657.19 = 251,653.77 : x
  2. Step 2: Convert to fraction form
    423,852.75/584,657.19 = 251,653.77/x
  3. Step 3: Cross multiply
    423,852.75x = 584,657.19 × 251,653.77
  4. Step 4: Simplify right side
    423,852.75x = 147,131,186,021.11
  5. Step 5: Solve for x
    x = 147,131,186,021.11/423,852.75
  6. Step 6: Final answer
    x = 347,128.07

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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.