Home / 716,731.32-988,677.82-447,992.76

Finding the Fourth Proportional to 716,731.32, 988,677.82 and 447,992.76

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Solution

The fourth proportional to 716,731.32, 988,677.82 and 447,992.76 is: 617,972.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,731.32 : 988,677.82 = 447,992.76 : x
  2. Step 2: Convert to fraction form
    716,731.32/988,677.82 = 447,992.76/x
  3. Step 3: Cross multiply
    716,731.32x = 988,677.82 × 447,992.76
  4. Step 4: Simplify right side
    716,731.32x = 442,920,505,332.58
  5. Step 5: Solve for x
    x = 442,920,505,332.58/716,731.32
  6. Step 6: Final answer
    x = 617,972.86

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Double scale
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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.