Home / 401,159.82-553,852.26-258,168.36

Finding the Fourth Proportional to 401,159.82, 553,852.26 and 258,168.36

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Solution

The fourth proportional to 401,159.82, 553,852.26 and 258,168.36 is: 356,434.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,159.82 : 553,852.26 = 258,168.36 : x
  2. Step 2: Convert to fraction form
    401,159.82/553,852.26 = 258,168.36/x
  3. Step 3: Cross multiply
    401,159.82x = 553,852.26 × 258,168.36
  4. Step 4: Simplify right side
    401,159.82x = 142,987,129,646.49
  5. Step 5: Solve for x
    x = 142,987,129,646.49/401,159.82
  6. Step 6: Final answer
    x = 356,434.32

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1.5x scale

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.