Home / 430,140.78-641,581.29-373,535.82

Finding the Fourth Proportional to 430,140.78, 641,581.29 and 373,535.82

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Solution

The fourth proportional to 430,140.78, 641,581.29 and 373,535.82 is: 557,151.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,140.78 : 641,581.29 = 373,535.82 : x
  2. Step 2: Convert to fraction form
    430,140.78/641,581.29 = 373,535.82/x
  3. Step 3: Cross multiply
    430,140.78x = 641,581.29 × 373,535.82
  4. Step 4: Simplify right side
    430,140.78x = 239,653,593,256.81
  5. Step 5: Solve for x
    x = 239,653,593,256.81/430,140.78
  6. Step 6: Final answer
    x = 557,151.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.