Home / 401,366.76-553,407.30-258,132.84

Finding the Fourth Proportional to 401,366.76, 553,407.30 and 258,132.84

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Solution

The fourth proportional to 401,366.76, 553,407.30 and 258,132.84 is: 355,915.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,366.76 : 553,407.30 = 258,132.84 : x
  2. Step 2: Convert to fraction form
    401,366.76/553,407.30 = 258,132.84/x
  3. Step 3: Cross multiply
    401,366.76x = 553,407.30 × 258,132.84
  4. Step 4: Simplify right side
    401,366.76x = 142,852,598,025.73
  5. Step 5: Solve for x
    x = 142,852,598,025.73/401,366.76
  6. Step 6: Final answer
    x = 355,915.37

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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.