Home / 317,527.42-438,551.52-209,116.38

Finding the Fourth Proportional to 317,527.42, 438,551.52 and 209,116.38

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Solution

The fourth proportional to 317,527.42, 438,551.52 and 209,116.38 is: 288,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,527.42 : 438,551.52 = 209,116.38 : x
  2. Step 2: Convert to fraction form
    317,527.42/438,551.52 = 209,116.38/x
  3. Step 3: Cross multiply
    317,527.42x = 438,551.52 × 209,116.38
  4. Step 4: Simplify right side
    317,527.42x = 91,708,306,736.09
  5. Step 5: Solve for x
    x = 91,708,306,736.09/317,527.42
  6. Step 6: Final answer
    x = 288,820.11

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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.