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Finding the Fourth Proportional to 451,641.07, 623,207.01 and 258,061.31

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Solution

The fourth proportional to 451,641.07, 623,207.01 and 258,061.31 is: 356,091.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,641.07 : 623,207.01 = 258,061.31 : x
  2. Step 2: Convert to fraction form
    451,641.07/623,207.01 = 258,061.31/x
  3. Step 3: Cross multiply
    451,641.07x = 623,207.01 × 258,061.31
  4. Step 4: Simplify right side
    451,641.07x = 160,825,617,590.50
  5. Step 5: Solve for x
    x = 160,825,617,590.50/451,641.07
  6. Step 6: Final answer
    x = 356,091.66

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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.