Home / 317,868.33-438,404.60-209,084.39

Finding the Fourth Proportional to 317,868.33, 438,404.60 and 209,084.39

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Solution

The fourth proportional to 317,868.33, 438,404.60 and 209,084.39 is: 288,369.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,868.33 : 438,404.60 = 209,084.39 : x
  2. Step 2: Convert to fraction form
    317,868.33/438,404.60 = 209,084.39/x
  3. Step 3: Cross multiply
    317,868.33x = 438,404.60 × 209,084.39
  4. Step 4: Simplify right side
    317,868.33x = 91,663,558,364.19
  5. Step 5: Solve for x
    x = 91,663,558,364.19/317,868.33
  6. Step 6: Final answer
    x = 288,369.58

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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.