Home / 317,638.28-438,341.57-174,407.54

Finding the Fourth Proportional to 317,638.28, 438,341.57 and 174,407.54

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Solution

The fourth proportional to 317,638.28, 438,341.57 and 174,407.54 is: 240,682.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,638.28 : 438,341.57 = 174,407.54 : x
  2. Step 2: Convert to fraction form
    317,638.28/438,341.57 = 174,407.54/x
  3. Step 3: Cross multiply
    317,638.28x = 438,341.57 × 174,407.54
  4. Step 4: Simplify right side
    317,638.28x = 76,450,076,435.31
  5. Step 5: Solve for x
    x = 76,450,076,435.31/317,638.28
  6. Step 6: Final answer
    x = 240,682.82

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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.