Home / 1,639,031.28-2,256,716.08-1,393,533.24

Finding the Fourth Proportional to 1,639,031.28, 2,256,716.08 and 1,393,533.24

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Solution

The fourth proportional to 1,639,031.28, 2,256,716.08 and 1,393,533.24 is: 1,918,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,031.28 : 2,256,716.08 = 1,393,533.24 : x
  2. Step 2: Convert to fraction form
    1,639,031.28/2,256,716.08 = 1,393,533.24/x
  3. Step 3: Cross multiply
    1,639,031.28x = 2,256,716.08 × 1,393,533.24
  4. Step 4: Simplify right side
    1,639,031.28x = 3,144,808,870,722.50
  5. Step 5: Solve for x
    x = 3,144,808,870,722.50/1,639,031.28
  6. Step 6: Final answer
    x = 1,918,699.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.