Home / 738,496.98-1,019,143.85-411,806.80

Finding the Fourth Proportional to 738,496.98, 1,019,143.85 and 411,806.80

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Solution

The fourth proportional to 738,496.98, 1,019,143.85 and 411,806.80 is: 568,303.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,496.98 : 1,019,143.85 = 411,806.80 : x
  2. Step 2: Convert to fraction form
    738,496.98/1,019,143.85 = 411,806.80/x
  3. Step 3: Cross multiply
    738,496.98x = 1,019,143.85 × 411,806.80
  4. Step 4: Simplify right side
    738,496.98x = 419,690,363,001.29
  5. Step 5: Solve for x
    x = 419,690,363,001.29/738,496.98
  6. Step 6: Final answer
    x = 568,303.42

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.