Home / 1,216,528.54-1,678,741.67-672,631.70

Finding the Fourth Proportional to 1,216,528.54, 1,678,741.67 and 672,631.70

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Solution

The fourth proportional to 1,216,528.54, 1,678,741.67 and 672,631.70 is: 928,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,528.54 : 1,678,741.67 = 672,631.70 : x
  2. Step 2: Convert to fraction form
    1,216,528.54/1,678,741.67 = 672,631.70/x
  3. Step 3: Cross multiply
    1,216,528.54x = 1,678,741.67 × 672,631.70
  4. Step 4: Simplify right side
    1,216,528.54x = 1,129,174,856,640.81
  5. Step 5: Solve for x
    x = 1,129,174,856,640.81/1,216,528.54
  6. Step 6: Final answer
    x = 928,194.30

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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.