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Finding the Fourth Proportional to 1,254,804.70, 1,731,641.43 and 681,844.90

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Solution

The fourth proportional to 1,254,804.70, 1,731,641.43 and 681,844.90 is: 940,951.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,804.70 : 1,731,641.43 = 681,844.90 : x
  2. Step 2: Convert to fraction form
    1,254,804.70/1,731,641.43 = 681,844.90/x
  3. Step 3: Cross multiply
    1,254,804.70x = 1,731,641.43 × 681,844.90
  4. Step 4: Simplify right side
    1,254,804.70x = 1,180,710,877,674.21
  5. Step 5: Solve for x
    x = 1,180,710,877,674.21/1,254,804.70
  6. Step 6: Final answer
    x = 940,951.91

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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.