Home / 1,219,872.02-1,683,409.92-668,592.20

Finding the Fourth Proportional to 1,219,872.02, 1,683,409.92 and 668,592.20

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Solution

The fourth proportional to 1,219,872.02, 1,683,409.92 and 668,592.20 is: 922,649.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,872.02 : 1,683,409.92 = 668,592.20 : x
  2. Step 2: Convert to fraction form
    1,219,872.02/1,683,409.92 = 668,592.20/x
  3. Step 3: Cross multiply
    1,219,872.02x = 1,683,409.92 × 668,592.20
  4. Step 4: Simplify right side
    1,219,872.02x = 1,125,514,741,914.62
  5. Step 5: Solve for x
    x = 1,125,514,741,914.62/1,219,872.02
  6. Step 6: Final answer
    x = 922,649.85

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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.