Home / 1,638,123.84-2,260,794.72-913,037.76

Finding the Fourth Proportional to 1,638,123.84, 2,260,794.72 and 913,037.76

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Solution

The fourth proportional to 1,638,123.84, 2,260,794.72 and 913,037.76 is: 1,260,094.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,123.84 : 2,260,794.72 = 913,037.76 : x
  2. Step 2: Convert to fraction form
    1,638,123.84/2,260,794.72 = 913,037.76/x
  3. Step 3: Cross multiply
    1,638,123.84x = 2,260,794.72 × 913,037.76
  4. Step 4: Simplify right side
    1,638,123.84x = 2,064,190,946,968.63
  5. Step 5: Solve for x
    x = 2,064,190,946,968.63/1,638,123.84
  6. Step 6: Final answer
    x = 1,260,094.56

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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.