Home / 639,037.15-881,840.49-348,631.43

Finding the Fourth Proportional to 639,037.15, 881,840.49 and 348,631.43

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Solution

The fourth proportional to 639,037.15, 881,840.49 and 348,631.43 is: 481,094.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,037.15 : 881,840.49 = 348,631.43 : x
  2. Step 2: Convert to fraction form
    639,037.15/881,840.49 = 348,631.43/x
  3. Step 3: Cross multiply
    639,037.15x = 881,840.49 × 348,631.43
  4. Step 4: Simplify right side
    639,037.15x = 307,437,305,344.03
  5. Step 5: Solve for x
    x = 307,437,305,344.03/639,037.15
  6. Step 6: Final answer
    x = 481,094.58

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1.5x scale

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.