Home / 624,564.40-861,899.08-338,083.60

Finding the Fourth Proportional to 624,564.40, 861,899.08 and 338,083.60

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Solution

The fourth proportional to 624,564.40, 861,899.08 and 338,083.60 is: 466,555.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,564.40 : 861,899.08 = 338,083.60 : x
  2. Step 2: Convert to fraction form
    624,564.40/861,899.08 = 338,083.60/x
  3. Step 3: Cross multiply
    624,564.40x = 861,899.08 × 338,083.60
  4. Step 4: Simplify right side
    624,564.40x = 291,393,943,803.09
  5. Step 5: Solve for x
    x = 291,393,943,803.09/624,564.40
  6. Step 6: Final answer
    x = 466,555.48

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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.