Home / 869,086.90-1,303,630.35-237,999.70

Finding the Fourth Proportional to 869,086.90, 1,303,630.35 and 237,999.70

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Solution

The fourth proportional to 869,086.90, 1,303,630.35 and 237,999.70 is: 356,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,086.90 : 1,303,630.35 = 237,999.70 : x
  2. Step 2: Convert to fraction form
    869,086.90/1,303,630.35 = 237,999.70/x
  3. Step 3: Cross multiply
    869,086.90x = 1,303,630.35 × 237,999.70
  4. Step 4: Simplify right side
    869,086.90x = 310,263,632,210.90
  5. Step 5: Solve for x
    x = 310,263,632,210.90/869,086.90
  6. Step 6: Final answer
    x = 356,999.55

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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.