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Finding the Fourth Proportional to 905,877.86, 1,250,111.00 and 498,006

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Solution

The fourth proportional to 905,877.86, 1,250,111.00 and 498,006 is: 687,248.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,877.86 : 1,250,111.00 = 498,006 : x
  2. Step 2: Convert to fraction form
    905,877.86/1,250,111.00 = 498,006/x
  3. Step 3: Cross multiply
    905,877.86x = 1,250,111.00 × 498,006
  4. Step 4: Simplify right side
    905,877.86x = 622,562,779,911.02
  5. Step 5: Solve for x
    x = 622,562,779,911.02/905,877.86
  6. Step 6: Final answer
    x = 687,248.04

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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.