Home / 638,166.60-957,185.10-217,436.40

Finding the Fourth Proportional to 638,166.60, 957,185.10 and 217,436.40

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Solution

The fourth proportional to 638,166.60, 957,185.10 and 217,436.40 is: 326,132.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,166.60 : 957,185.10 = 217,436.40 : x
  2. Step 2: Convert to fraction form
    638,166.60/957,185.10 = 217,436.40/x
  3. Step 3: Cross multiply
    638,166.60x = 957,185.10 × 217,436.40
  4. Step 4: Simplify right side
    638,166.60x = 208,126,882,277.64
  5. Step 5: Solve for x
    x = 208,126,882,277.64/638,166.60
  6. Step 6: Final answer
    x = 326,132.52

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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.