Home / 629,979.39-943,917.17-442,655.55

Finding the Fourth Proportional to 629,979.39, 943,917.17 and 442,655.55

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Solution

The fourth proportional to 629,979.39, 943,917.17 and 442,655.55 is: 663,244.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,979.39 : 943,917.17 = 442,655.55 : x
  2. Step 2: Convert to fraction form
    629,979.39/943,917.17 = 442,655.55/x
  3. Step 3: Cross multiply
    629,979.39x = 943,917.17 × 442,655.55
  4. Step 4: Simplify right side
    629,979.39x = 417,830,171,827.52
  5. Step 5: Solve for x
    x = 417,830,171,827.52/629,979.39
  6. Step 6: Final answer
    x = 663,244.19

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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.