Home / 643,289.25-887,158.26-401,594.16

Finding the Fourth Proportional to 643,289.25, 887,158.26 and 401,594.16

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Solution

The fourth proportional to 643,289.25, 887,158.26 and 401,594.16 is: 553,837.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,289.25 : 887,158.26 = 401,594.16 : x
  2. Step 2: Convert to fraction form
    643,289.25/887,158.26 = 401,594.16/x
  3. Step 3: Cross multiply
    643,289.25x = 887,158.26 × 401,594.16
  4. Step 4: Simplify right side
    643,289.25x = 356,277,576,211.76
  5. Step 5: Solve for x
    x = 356,277,576,211.76/643,289.25
  6. Step 6: Final answer
    x = 553,837.29

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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.