Home / 401,323.61-553,849.20-238,076.76

Finding the Fourth Proportional to 401,323.61, 553,849.20 and 238,076.76

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Solution

The fourth proportional to 401,323.61, 553,849.20 and 238,076.76 is: 328,559.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,323.61 : 553,849.20 = 238,076.76 : x
  2. Step 2: Convert to fraction form
    401,323.61/553,849.20 = 238,076.76/x
  3. Step 3: Cross multiply
    401,323.61x = 553,849.20 × 238,076.76
  4. Step 4: Simplify right side
    401,323.61x = 131,858,623,064.59
  5. Step 5: Solve for x
    x = 131,858,623,064.59/401,323.61
  6. Step 6: Final answer
    x = 328,559.35

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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.