Home / 816,841.61-1,225,320.94-217,799.63

Finding the Fourth Proportional to 816,841.61, 1,225,320.94 and 217,799.63

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Solution

The fourth proportional to 816,841.61, 1,225,320.94 and 217,799.63 is: 326,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,841.61 : 1,225,320.94 = 217,799.63 : x
  2. Step 2: Convert to fraction form
    816,841.61/1,225,320.94 = 217,799.63/x
  3. Step 3: Cross multiply
    816,841.61x = 1,225,320.94 × 217,799.63
  4. Step 4: Simplify right side
    816,841.61x = 266,874,447,363.25
  5. Step 5: Solve for x
    x = 266,874,447,363.25/816,841.61
  6. Step 6: Final answer
    x = 326,715.05

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Double scale
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Similar ratio
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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.