Home / 615,622.41-849,573.21-386,189.36

Finding the Fourth Proportional to 615,622.41, 849,573.21 and 386,189.36

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Solution

The fourth proportional to 615,622.41, 849,573.21 and 386,189.36 is: 532,950.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,622.41 : 849,573.21 = 386,189.36 : x
  2. Step 2: Convert to fraction form
    615,622.41/849,573.21 = 386,189.36/x
  3. Step 3: Cross multiply
    615,622.41x = 849,573.21 × 386,189.36
  4. Step 4: Simplify right side
    615,622.41x = 328,096,134,629.29
  5. Step 5: Solve for x
    x = 328,096,134,629.29/615,622.41
  6. Step 6: Final answer
    x = 532,950.28

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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.