Home / 289,056.36-399,008.52-193,528.20

Finding the Fourth Proportional to 289,056.36, 399,008.52 and 193,528.20

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Solution

The fourth proportional to 289,056.36, 399,008.52 and 193,528.20 is: 267,143.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,056.36 : 399,008.52 = 193,528.20 : x
  2. Step 2: Convert to fraction form
    289,056.36/399,008.52 = 193,528.20/x
  3. Step 3: Cross multiply
    289,056.36x = 399,008.52 × 193,528.20
  4. Step 4: Simplify right side
    289,056.36x = 77,219,400,660.26
  5. Step 5: Solve for x
    x = 77,219,400,660.26/289,056.36
  6. Step 6: Final answer
    x = 267,143.06

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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.