Home / 430,884.84-646,027.47-190,868.43

Finding the Fourth Proportional to 430,884.84, 646,027.47 and 190,868.43

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Solution

The fourth proportional to 430,884.84, 646,027.47 and 190,868.43 is: 286,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,884.84 : 646,027.47 = 190,868.43 : x
  2. Step 2: Convert to fraction form
    430,884.84/646,027.47 = 190,868.43/x
  3. Step 3: Cross multiply
    430,884.84x = 646,027.47 × 190,868.43
  4. Step 4: Simplify right side
    430,884.84x = 123,306,248,935.77
  5. Step 5: Solve for x
    x = 123,306,248,935.77/430,884.84
  6. Step 6: Final answer
    x = 286,169.85

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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.