Home / 1,216,529.29-1,678,742.71-672,632.45

Finding the Fourth Proportional to 1,216,529.29, 1,678,742.71 and 672,632.45

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Solution

The fourth proportional to 1,216,529.29, 1,678,742.71 and 672,632.45 is: 928,195.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,529.29 : 1,678,742.71 = 672,632.45 : x
  2. Step 2: Convert to fraction form
    1,216,529.29/1,678,742.71 = 672,632.45/x
  3. Step 3: Cross multiply
    1,216,529.29x = 1,678,742.71 × 672,632.45
  4. Step 4: Simplify right side
    1,216,529.29x = 1,129,176,811,871.64
  5. Step 5: Solve for x
    x = 1,129,176,811,871.64/1,216,529.29
  6. Step 6: Final answer
    x = 928,195.34

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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.