Home / 627,384.20-865,988.34-401,030.60

Finding the Fourth Proportional to 627,384.20, 865,988.34 and 401,030.60

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Solution

The fourth proportional to 627,384.20, 865,988.34 and 401,030.60 is: 553,548.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,384.20 : 865,988.34 = 401,030.60 : x
  2. Step 2: Convert to fraction form
    627,384.20/865,988.34 = 401,030.60/x
  3. Step 3: Cross multiply
    627,384.20x = 865,988.34 × 401,030.60
  4. Step 4: Simplify right side
    627,384.20x = 347,287,823,583.20
  5. Step 5: Solve for x
    x = 347,287,823,583.20/627,384.20
  6. Step 6: Final answer
    x = 553,548.88

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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.