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Finding the Fourth Proportional to 316,232.42, 436,399.36 and 171,038.34

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Solution

The fourth proportional to 316,232.42, 436,399.36 and 171,038.34 is: 236,032.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,232.42 : 436,399.36 = 171,038.34 : x
  2. Step 2: Convert to fraction form
    316,232.42/436,399.36 = 171,038.34/x
  3. Step 3: Cross multiply
    316,232.42x = 436,399.36 × 171,038.34
  4. Step 4: Simplify right side
    316,232.42x = 74,641,021,683.87
  5. Step 5: Solve for x
    x = 74,641,021,683.87/316,232.42
  6. Step 6: Final answer
    x = 236,032.17

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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.