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Finding the Fourth Proportional to 578,776.40, 868,164.60 and 410,814.80

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Solution

The fourth proportional to 578,776.40, 868,164.60 and 410,814.80 is: 616,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,776.40 : 868,164.60 = 410,814.80 : x
  2. Step 2: Convert to fraction form
    578,776.40/868,164.60 = 410,814.80/x
  3. Step 3: Cross multiply
    578,776.40x = 868,164.60 × 410,814.80
  4. Step 4: Simplify right side
    578,776.40x = 356,654,866,516.08
  5. Step 5: Solve for x
    x = 356,654,866,516.08/578,776.40
  6. Step 6: Final answer
    x = 616,222.20

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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.