Home / 688,089.41-949,563.38-386,283.41

Finding the Fourth Proportional to 688,089.41, 949,563.38 and 386,283.41

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Solution

The fourth proportional to 688,089.41, 949,563.38 and 386,283.41 is: 533,071.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,089.41 : 949,563.38 = 386,283.41 : x
  2. Step 2: Convert to fraction form
    688,089.41/949,563.38 = 386,283.41/x
  3. Step 3: Cross multiply
    688,089.41x = 949,563.38 × 386,283.41
  4. Step 4: Simplify right side
    688,089.41x = 366,800,580,437.53
  5. Step 5: Solve for x
    x = 366,800,580,437.53/688,089.41
  6. Step 6: Final answer
    x = 533,071.10

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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.