Home / 1,657,903.20-2,485,011.60-711,112.80

Finding the Fourth Proportional to 1,657,903.20, 2,485,011.60 and 711,112.80

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Solution

The fourth proportional to 1,657,903.20, 2,485,011.60 and 711,112.80 is: 1,065,878.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,903.20 : 2,485,011.60 = 711,112.80 : x
  2. Step 2: Convert to fraction form
    1,657,903.20/2,485,011.60 = 711,112.80/x
  3. Step 3: Cross multiply
    1,657,903.20x = 2,485,011.60 × 711,112.80
  4. Step 4: Simplify right side
    1,657,903.20x = 1,767,123,556,908.48
  5. Step 5: Solve for x
    x = 1,767,123,556,908.48/1,657,903.20
  6. Step 6: Final answer
    x = 1,065,878.61

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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.