Home / 1,785,688.80-2,678,533.20-1,039,192.80

Finding the Fourth Proportional to 1,785,688.80, 2,678,533.20 and 1,039,192.80

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Solution

The fourth proportional to 1,785,688.80, 2,678,533.20 and 1,039,192.80 is: 1,558,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785,688.80 : 2,678,533.20 = 1,039,192.80 : x
  2. Step 2: Convert to fraction form
    1,785,688.80/2,678,533.20 = 1,039,192.80/x
  3. Step 3: Cross multiply
    1,785,688.80x = 2,678,533.20 × 1,039,192.80
  4. Step 4: Simplify right side
    1,785,688.80x = 2,783,512,416,000.96
  5. Step 5: Solve for x
    x = 2,783,512,416,000.96/1,785,688.80
  6. Step 6: Final answer
    x = 1,558,789.20

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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.