Home / 863,857.40-1,295,786.10-414,501.80

Finding the Fourth Proportional to 863,857.40, 1,295,786.10 and 414,501.80

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Solution

The fourth proportional to 863,857.40, 1,295,786.10 and 414,501.80 is: 621,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,857.40 : 1,295,786.10 = 414,501.80 : x
  2. Step 2: Convert to fraction form
    863,857.40/1,295,786.10 = 414,501.80/x
  3. Step 3: Cross multiply
    863,857.40x = 1,295,786.10 × 414,501.80
  4. Step 4: Simplify right side
    863,857.40x = 537,105,670,864.98
  5. Step 5: Solve for x
    x = 537,105,670,864.98/863,857.40
  6. Step 6: Final answer
    x = 621,752.70

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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.