Home / 1,909,411.38-2,863,673.60-561,213.36

Finding the Fourth Proportional to 1,909,411.38, 2,863,673.60 and 561,213.36

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Solution

The fourth proportional to 1,909,411.38, 2,863,673.60 and 561,213.36 is: 841,689.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,411.38 : 2,863,673.60 = 561,213.36 : x
  2. Step 2: Convert to fraction form
    1,909,411.38/2,863,673.60 = 561,213.36/x
  3. Step 3: Cross multiply
    1,909,411.38x = 2,863,673.60 × 561,213.36
  4. Step 4: Simplify right side
    1,909,411.38x = 1,607,131,880,193.23
  5. Step 5: Solve for x
    x = 1,607,131,880,193.23/1,909,411.38
  6. Step 6: Final answer
    x = 841,689.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.