Home / 1,047,153.84-1,445,033.64-639,936.96

Finding the Fourth Proportional to 1,047,153.84, 1,445,033.64 and 639,936.96

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Solution

The fourth proportional to 1,047,153.84, 1,445,033.64 and 639,936.96 is: 883,089.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,153.84 : 1,445,033.64 = 639,936.96 : x
  2. Step 2: Convert to fraction form
    1,047,153.84/1,445,033.64 = 639,936.96/x
  3. Step 3: Cross multiply
    1,047,153.84x = 1,445,033.64 × 639,936.96
  4. Step 4: Simplify right side
    1,047,153.84x = 924,730,434,679.33
  5. Step 5: Solve for x
    x = 924,730,434,679.33/1,047,153.84
  6. Step 6: Final answer
    x = 883,089.38

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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.