Home / 638,417.71-957,845.27-217,988.83

Finding the Fourth Proportional to 638,417.71, 957,845.27 and 217,988.83

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Solution

The fourth proportional to 638,417.71, 957,845.27 and 217,988.83 is: 327,057.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,417.71 : 957,845.27 = 217,988.83 : x
  2. Step 2: Convert to fraction form
    638,417.71/957,845.27 = 217,988.83/x
  3. Step 3: Cross multiply
    638,417.71x = 957,845.27 × 217,988.83
  4. Step 4: Simplify right side
    638,417.71x = 208,799,569,728.33
  5. Step 5: Solve for x
    x = 208,799,569,728.33/638,417.71
  6. Step 6: Final answer
    x = 327,057.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.