Home / 1,152,076.40-1,728,114.60-620,635.40

Finding the Fourth Proportional to 1,152,076.40, 1,728,114.60 and 620,635.40

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Solution

The fourth proportional to 1,152,076.40, 1,728,114.60 and 620,635.40 is: 930,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,076.40 : 1,728,114.60 = 620,635.40 : x
  2. Step 2: Convert to fraction form
    1,152,076.40/1,728,114.60 = 620,635.40/x
  3. Step 3: Cross multiply
    1,152,076.40x = 1,728,114.60 × 620,635.40
  4. Step 4: Simplify right side
    1,152,076.40x = 1,072,529,096,016.84
  5. Step 5: Solve for x
    x = 1,072,529,096,016.84/1,152,076.40
  6. Step 6: Final answer
    x = 930,953.10

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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.