Home / 1,178,915.56-1,626,903.53-642,371.56

Finding the Fourth Proportional to 1,178,915.56, 1,626,903.53 and 642,371.56

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Solution

The fourth proportional to 1,178,915.56, 1,626,903.53 and 642,371.56 is: 886,472.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,915.56 : 1,626,903.53 = 642,371.56 : x
  2. Step 2: Convert to fraction form
    1,178,915.56/1,626,903.53 = 642,371.56/x
  3. Step 3: Cross multiply
    1,178,915.56x = 1,626,903.53 × 642,371.56
  4. Step 4: Simplify right side
    1,178,915.56x = 1,045,076,558,535.61
  5. Step 5: Solve for x
    x = 1,045,076,558,535.61/1,178,915.56
  6. Step 6: Final answer
    x = 886,472.78

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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.