Home / 643,913.04-965,650.84-223,090.68

Finding the Fourth Proportional to 643,913.04, 965,650.84 and 223,090.68

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Solution

The fourth proportional to 643,913.04, 965,650.84 and 223,090.68 is: 334,560.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,913.04 : 965,650.84 = 223,090.68 : x
  2. Step 2: Convert to fraction form
    643,913.04/965,650.84 = 223,090.68/x
  3. Step 3: Cross multiply
    643,913.04x = 965,650.84 × 223,090.68
  4. Step 4: Simplify right side
    643,913.04x = 215,427,702,538.17
  5. Step 5: Solve for x
    x = 215,427,702,538.17/643,913.04
  6. Step 6: Final answer
    x = 334,560.24

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1.5x scale

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.