Home / 628,810.66-867,776.88-342,335.62

Finding the Fourth Proportional to 628,810.66, 867,776.88 and 342,335.62

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Solution

The fourth proportional to 628,810.66, 867,776.88 and 342,335.62 is: 472,433.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,810.66 : 867,776.88 = 342,335.62 : x
  2. Step 2: Convert to fraction form
    628,810.66/867,776.88 = 342,335.62/x
  3. Step 3: Cross multiply
    628,810.66x = 867,776.88 × 342,335.62
  4. Step 4: Simplify right side
    628,810.66x = 297,070,936,236.47
  5. Step 5: Solve for x
    x = 297,070,936,236.47/628,810.66
  6. Step 6: Final answer
    x = 472,433.05

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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.